Publications based on SWEOLD
International Publications – Journals
2014
Agahi N, Shaw BA, Fors S. Social and economic conditions in childhood and the progression of
functional health problems from midlife into old age. Journal of Epidemiology and Community Health
[In press:online] 2014. Available from: http://jech.bmj.com/content/early/2014/04/23/jech-2013203698.full
Andel R, Silverstein M, Kåreholt I. The Role of Midlife Occupational Complexity and Leisure Activity in
Late-Life Cognition. Journals of Gerontology, Series B: Psychological Sciences and Social Sciences
2014 accepted for publication.
Dahlberg L, Andersson L, McKee KJ, Lennartsson C. Predictors of loneliness among older women
and men in Sweden: A national longitudinal study. Aging & Mental Health [In press:online] 2014.
Available from: http://dx.doi.org/10.1080/13607863.2014.944091
Heap J, Fors S. Duration and accumulation of disadvantages in old age. Social Indicators Research
[In press:online] 2014. Available from: DOI: 10.1007/s11205-014-0744-1
Kelfve S, Agahi N, Darin Mattsson A, Lennartsson C. Increased alcohol use over the past 20 years
among the oldest old in Sweden. Nordic Studies on Alcohol and Drugs 2014; 31(3):245-260.
Larsson K, Kåreholt I, Thorslund M. Care utilisation in the last years of life in Sweden: The effects of
gender and marital status differ by type of care. European Journal of Ageing 2014 accepted for
publication.
Lennartsson C, Agahi N, Hols-Salén L, Kelfve S, Kåreholt I, Parker MG,et al. Data Resource Profile:
The Swedish Panel Study of Living Conditions of the Oldest Old (SWEOLD). International Journal of
Epidemiology [In press:online] 2014. Available from: doi: 10.1093/ije/dyu057
Lexomboon D, Wårdh I, Thorslund M, Parker MG. Determinants of tooth loss and chewing ability in
mid- and late life in three Swedish birth cohorts. Ageing & Society [In press:online] 2014. Available
from: doi:10.1017/S0144686X14000282
Lexomboon D, Wardh I, Thorslund M, Parker MG. Multiple tooth loss and chewing problems in mid
life and late life in three Swedish birth cohorts. Community Dentistry and Oral Epidemiology Journal
2014 accepted for publication.
Nilsen C, Andel R, Fors S, Meinow B, Mattsson AD, Kåreholt I. Associations between work-related
stress in late midlife, educational attainment, and serious health problems in old age: a longitudinal
study with over 20 years of follow-up. BMC Public Health; 14(1):878.
Shaw BA, Agahi N. Smoking and physical inactivity patterns during midlife as predictors of all-cause
mortality and disability: A 39-year prospective study. European Journal of Ageing 2014; 11(3):195204.
Page 1 of 12
2013
Agahi N, Lennartsson C, Kåreholt I, Shaw B. Trajectories of social activities from middle age to old
age and late-life disability – a 36-year follow-up. Age and Ageing 2013; 42(6):790-793.
Agahi N, Shaw BA. Smoking trajectories from midlife to old age and the development of non-lifethreatening health problems: A 34-year prospective cohort study. Preventive Medicine 2013;
57(2):107-112.
Fors S, Agahi N, Shaw BA. Paying the price? The impact of smoking and obesity on health
inequalities in later life. Scandinavian Journal of Public Health 2013; 41(2):134-141.
Heap J, Lennartsson C, Thorslund M. Coexisting disadvantages across the adult age span: a
comparison of older and younger age groups in the Swedish welfare state. International Journal of
Social Welfare 2013; 22(2):130-140.
Kelfve S, Thorslund M, Lennartsson C. Sampling and non-response bias on health outcomes in
surveys of the oldest old. European Journal of Ageing 2013; 10(3):237-245.
Parker V, Andel R, Nilsen C, Kåreholt I. The association between mid-life socioeconomic position and
health after retirement – exploring the role of working conditions. Journal of Aging & Health 2013;
25(5):863-881.
2012
Ahacic K, Kennis R, Kåreholt I. Changes in sobriety in the Swedish population over three decades:
age, period, or cohort effects? Addiction 2012; 107(4):748-755.
Lexomboon D, Trulsson M, Wårdh I, Parker MG. Chewing ability and tooth loss: association with
cognitive impairment in an elderly population study. Journal of the American Geriatric Society 2012;
60(10):1951-1956.
2011
Agahi N, Silverstein M, Parker MG. Late-life and earlier participation in leisure activities: their
importance for survival among older persons. Activities Adaptation & Aging 2011; 35(3):210-222.
Andel R, Crowe M, Kåreholt I, Wastesson J, Parker MG. Indicators of Job Strain at Midlife and
Cognitive Functioning in Advanced Old Age. Journals of Gerontology: B Psychological Sciences
Social Sciences 2011; 66B(3):287-291.
Fors S, Lennartsson C, Lundberg O. Live long and prosper? Childhood living conditions, marital
status, social class in adulthood and mortality during mid-life: a cohort study. Scandinavian Journal of
Public Health 2011; 39(2):179-186.
Kåreholt I, Lennartsson C, Gatz M, Parker MG. Baseline leisure activity and cognition more than two
decades later. International Journal of Geriatric Psychiatry 2011; 26(1):65-74.
Lennartsson C. Need and support: determinants of intra-familial financial transfers in Sweden.
International Journal of Social Welfare 2011; 20(1):66-74.
Meinow B, Parker MG, Thorslund M. Consumers of eldercare in Sweden: the semblance of choice.
Social Science Medicine 2011; 73(9):1285-1289.
Page 2 of 12
Schön P, Parker MG, Kåreholt I, Thorslund M. Gender differences in associations between ADL and
other health indicators in 1992 and 2002. Aging Clinical and Experimental Research 2011; 23(2):9198.
2010
Ahacic K, Kareholt I. Prevalence of musculoskeletal pain in the general Swedish population from 1968
to 2002: Age, period, and cohort patterns. Pain 2010; 151(1):206-214.
Lennartsson C, Silverstein M, Fritzell J. Time-for-Money Exchanges Between Older and Younger
Generations in Swedish Families. Journal of Family Issues 2010; 31(2):189-210.
Meinow B, Parker MG, Thorslund M. Complex health problems and mortality in the oldest old in
Sweden: Decreased risk for men between 1992 and 2002. European Journal of Ageing 2010; 7(2):8190.
Parker MG, Lennartsson C, Kelfve S. Approcher I’âge de la retraite en Suède: santé et ressources
des 50-64 ans entre 1968 et 2000. Retraite et Société 2010; 59:41-59.
2009
Fors S, Lennartsson C, Lundberg O. Childhood living conditions, socioeconomic position in
adulthood, and cognition in later life — exploring the associations. Journal of Gerontology: B
Psychological Sciences Social Sciences 2009; 64B(6):750–757.
Schön P,Parker MG. Sex differences in health in 1992 and 2002 among very old Swedes. Journal of
Population Ageing 2009; 1(2):107-123.
2008
Agahi N, Parker MG. Leisure activities and mortality: Does gender matter? Journal of Aging and
Health 2008; 20(7):855-871.
Ahacic K, Kennison R, Thorslund M. Trends in smoking in Sweden from 1968 to 2002: Age, period
and cohort patterns. Preventive Medicine 2008; 46:558-564.
Fors S, Lennartsson C. Social mobility, geographical proximity and intergenerational family contact,
Ageing & Society 2008; 28:253-270.
Fors S, Lennartsson C, Lundberg O. Health inequalities among older adults in Sweden 1991-2002.
European Journal of Public Health 2008; 18(2):138-43.
Haider SI, Johnell K, Thorslund M, Fastbom J. Analysis of the association between polypharmacy and
socioeconomic position among elderly aged 77+ in Sweden. Clinical Therapeutics 2008; 30(2):419427.
Parker MG, Schön P, Lagergren M, Thorslund M. Functional ability in the elderly Swedish population
from 1980 to 2005. European Journal of Ageing 2008; 5(4):299-309.
Page 3 of 12
2007
Ahacic K, Thorslund M. Changes in dental status and dental care utilization in the Swedish population
over three decades: age, period or cohort effects? Community Dentistry and Oral Epidemiology 2007;
6(2):118-127.
Ahacic K, Kåreholt I, Thorslund M, Parker MG. Relationships between symptoms, physical capacity
and activity limitations in 1992 and 2002. Aging Clinical and Experimental Research 2007; 19(3):187193.
Ahacic K, Parker MG, Thorslund M. Aging in disguise: age, period and cohort effects in mobility and
edentulousness over three decades. European Journal of Ageing 2007; 4(2):83-91.
Andel R, Kåreholt I, Parker MG, Thorslund M, Gatz M. Complexity of Primary Lifetime Occupation and
Cognition in Advanced Old Age. Journal of Aging and Health 2007; 19(3):397-415.
Haider SI, Johnell K, Thorslund M, Fastbom J. Trends in polypharmacy and potential drug-drug
interactions across educational groups in elderly patients in Sweden for the period 1992-2002.
International Journal of Clinical Pharmacology and Therapeutics 2007; 45:643-653.
Parker MG, Thorslund M. Health trends in the elderly population: Getting better and getting worse.
The Gerontologist 2007; 47(2):150-158.
Östberg V, Lennartsson C. Getting by with a little help. The importance of various types of social
support for health problems. Scandinavian Journal of Public Health 2007; 35:197-204.
2006
Agahi N, Ahacic K, Parker MG. Continuity of leisure participation from middle age to old age. Journals
of Gerontology: B Psychological Sciences Social Sciences 2006; 61B (6):340-346.
Fors S, Thorslund M, Parker MG. Do actions speak louder than words? Self-assessed and
performance-based measures of physical and visual function among old people. European Journal of
Ageing 2006; 3(1):15-21.
Meinow B, Parker MG, Kåreholt I, Thorslund M. Complex health problems in the oldest old in Sweden
1992-2002. European Journal of Ageing 2006; 3(2):98-106.
2005
Agahi N, Parker MG. Are today’s older people more active than their predecessors? Participation in
leisure-time activities in Sweden in 1992 and 2002. Ageing & Society 2005; 25(6):925-941.
Beckman A, Bernsten C, Parker MG, Thorslund M, Fastbom J. The difficulty of opening medicine
containers in old age: a population based study. Pharmacy World & Science 2005; 27(5):393-398.
Beckman AG, Parker MG,Thorslund M. Can elderly people take their medicine? Patient Education
and Counseling 2005; 59(2):186-191.
Fritzell J, Lennartsson C. Financial transfer between generations in Sweden. Ageing & Society 2005;
25:397-414.
Page 4 of 12
Parker MG, Ahacic K, Thorslund M. Health changes among Swedish oldest old: Prevalence rates
from 1992 and 2002 show increasing health problems. Journal of Gerontology: A Medical Sciences
2005; 60A(10):1351-1355.
2003
Ahacic K, Parker MG, Thorslund M. Mobility Limitations 1974-1991: Period changes explaining
improvement in the population. Social Science and Medicine 2003; 57:2411-2422.
Manderbacka K, Kåreholt I, Martikainen P, Lundberg O. The effect of point of reference on the
association between self-rated health and mortality. Social Science & Medicine 2003; 56:1447-1452.
2002
Silverstein M, Parker MG. Leisure activities and the quality of life among the oldest old in Sweden.
Research on Aging 2002; 24:528-547.
2001
Kåreholt I. The relationship between heart problems and mortality in different social classes. Social
Science & Medicine 2001; 52:1391-1402.
Lennartsson C, Silverstein M. Does Engagement-with-Life Enhance Survival of the Oldest Old? An
Assessment of the Social and Leisure Activities of the Swedish Elderly. Journal of Gerontology: B
Psychological Sciences Social Sciences 2001; 56:335-342.
2000
Ahacic K, Parker MG, Thorslund M. Mobility limitations in the Swedish population from 1968 to 1992:
Age, gender and social class differences. Aging Clinical and Experimental Research 2000; 12:190198.
1999
Lennartsson C. Social Ties and Health Among the Very Old in Sweden. Research on Aging 1999;
21:657-681.
Parker MG, Ahacic K, Thorslund M, Lundberg O. Socioeconomic status and health among elderly
people in Sweden. Annals of the New York Academy of Sciences 1999; 896:383-385.
1998
Ahacic K, Barenthin I, Thorslund M. Changes in Swedish dental health 1968-91. Swedish Dental
Journal 1998; 5-6:211-222.
Page 5 of 12
Kåreholt I, Brattberg G. Pain and Mortality Risk among Elderly Persons in Sweden. Pain 1998;
77:271-278.
1997
Brattberg G, Parker MG, Thorslund M. A longitudinal study of pain: reported pain from middle age to
old age. The Clinical Journal of Pain 1997; 13(2):144-149.
1996
Bernadotte af Wisborg G, Claesson C, Lundberg O, Thorslund M. Drug usage and self-reported
health among a cross-sectional population aged over 75 years. Clinical Drug Investigation 1996;
12(3):156-169.
Brattberg G, Parker MG, Thorslund M. The prevalence of pain among the oldest old in Sweden. Pain
1996; 67: 29-34.
Lundberg O, Thorslund M. Fieldwork and measurement considerations in surveys of the oldest old.
Experiences from the Swedish level of living surveys. Social Indicators Research 1996; 37:165-189.
Manderbacka K, Lundberg O. Examining points of reference of self-rated health among Swedish
oldest-old. Archives of Gerontology and Geriatrics 1996; 23:47-60.
Parker MG, Gatz M, Thorslund M. Brief cognitive screening in a field survey of the oldest old. Aging
Clinical and Experimental Research 1996; 8(5):354-359.
Parker MG, Thorslund M, Lundberg O, Kåreholt I. Predictors of physical function – a 24 year follow-up
using three outcome variables. Journal of Aging and Health 1996; 8:444-460.
1994
Parker MG, Thorslund M, Lundberg O. Physical function and social class among Swedish oldest old.
Journals of Gerontology: B Psychological Sciences Social Sciences 1994; 49:196-201.
Thorslund M, Lundberg O. Health and inequalities among the oldest old. Journal of Aging and Health
1994; 6(1):51-69.
Page 6 of 12
International Publications – Books, Chapters and Reports
2013
Sundström G, Thorslund M. Healthy Aging in Sweden. In Scharlach A, Hoshino K, editors. Healthy
aging in sociocultural context. New York: Routledge Press; 2013. p.33-41.
2012
Parker MG. Aging in a gendered society: social and biological determinants of health in the elderly
population. Chapter: Geriatrics. In: Schenk-Gustafsson K, DeCola PR, Pfaff DW, Pisetsky DS, editors.
Handbook of clinical gender medicine. Basel: Karger; 2012. p.482-488.
Parker MG, Agahi N. Cohort change in living conditions and lifestyle among middle aged Swedes: the
effects on mortality and late-life disability. In: Phellas C, editor. Aging in European societies. New
York: Springer; 2012. p.237-253.
2007
Fritzell J, Lennartsson C, Lundberg O. Health and inequalities in Sweden: Long and short-term
perspectives. In Fritzell J, Lundberg O, editors. Health Inequalities and Welfare Resources: Continuity
and Change in Sweden. Brighton: Policy Press; 2007. p.19-42.
Fritzell J, Lennartsson C, Lundberg O. Health inequalities and welfare resources – findings and
forecasts. In Fritzell J, Lundberg O, editors. Health Inequalities and Welfare Resources: Continuity
and Change in Sweden. Brighton: Policy Press; 2007. p.199-208.
Lennartsson C, Lundberg O. What’s marital status got to do with it? Gender inequalities in economic
resources, health and functional abilities among older adults. In: Fritzell J, Lundberg O, editors. Health
Inequalities and Welfare Resources: Continuity and Change in Sweden. Brighton: Policy Press; 2007.
p.179-198.
2004
Parker MG, Thorslund M, Lundberg O. Support and care for frail old persons in Sweden. In: Marou N,
Björklund A, le Grand C, editors. Welfare Policy and Labour Markets. Transformations of the
Japanese and Swedish Models for the 21st Century. Stockholm: Almqvist & Wiksell International;
2004.
2001
Kåreholt I. The long shadow of socioeconomic conditions in childhood: do they affect class
inequalities in mortality?. In Jonsson JO, Mills C, editors. Cradle to Grave. Life Course Change in
Modern Sweden. York: Sociology Press; 2001.
Page 7 of 12
1999
Parker MG, Ahacic K, Thorslund M, Lundberg O. Socioeconomic status and health among elderly
people in Sweden. In: Adler NE, Marmot M, McEwen BS, Stewart J, editors. Socioeconomic Status
and Health in Industrial Nations, Social, Psychological, and Biological Pathways (Annals of the New
York Academy of Sciences). New York: The New York Academy of Sciences; 1999. 896(1):383-385.
1996
Lundberg O, Kåreholt I.The Social Patterning of Mortality in a cohort of Elderly Swedes. In Yearbook
of Population Research in Finland; Vol. 33; 1996.
Swedish Publications - Journals
2013
Fors S, Lennartsson C, Agahi N, Parker MG, Thorslund M. Intervjustudie om de allra äldstas
levnadsvillkor. Äldre har fått fler hälsoproblem, men klarar vardagen bättre. Läkartidningen
2013;110:CA33.
2010
Agahi N, Lennartsson C, Österman J, Wånell SE. Sociala relationer, socialt deltagande och hälsa
bland äldre personer. Socialmedicinsk tidskrift 2010; 87(3):175-181.
Agahi N. Aktiv och frisk eller frisk och aktiv? Äldre personers fritidsaktiviteter och sambandet med
hälsa. Socialmedicinsk tidskrift 2010; 3:241-246.
Parker V, Lööf L, Kåreholt I. After work – en longitudinell studie i arbetsmiljöns långsiktiga inverkan på
sambandet mellan socioekonomisk position och äldres ohälsa. Sociologisk forskning. 2010;4.
Thorslund M. Åldrandet och äldreomsorgens utveckling. Socialmedicinsk tidskrift 2010;87(5-6):397406.
2005
Thorslund M, Parker MG. Hur mår egentligen de äldre? Motstridiga forskningsresultat tyder på både
förbättrad och försämrad hälsa. Läkartidningen 2005; 102(43):3119-3124.
2004
Thorslund M, Lennartsson C, Parker MG, Lundberg O. De allra äldstas hälsa har blivit sämre (Elderly
people’s health has become worse). Läkartidningen 2004; 101(17):1494-1499.
Page 8 of 12
1997
Brattberg G, Parker MG, Kåreholt I. Smärta i den äldsta befolkningen. Smärta 1997; 1:12-14.
1996
Lundberg O, Thorslund M. Höga inkomster speglar bättre hälsa. Resurserna för äldrevården kan
fördelas bättre. Läkartidningen 1996; 93:2606-2608.
1995
Lundberg O, Thorslund M. De allra äldstas levnadsförhållanden. Social forskning 1995; 3:10-11.
1994
Bernadotte af Wisborg G, Claesson C, Thorslund M. Hur klarar äldre att öppna förpackningar och läsa
etiketter? Svensk Farmaceutisk Tidskrift 1994; 98:1-4.
1993
Thorslund M, Lundberg O. Levnadsnivåundersökningar av de äldsta. Viktigt att välja rätt test och rätt
intervjuare. Läkartidningen 1993; 41:3555-3556.
Thorslund M, Lundberg O, Parker MG. Klass och ohälsa bland de allra äldsta. Studie visar
allmängiltigt samband. Läkartidningen 1993; 41(90):3547-3550.
Swedish Publications – Books, Chapters and Reports
2013
Parker M. Hälsa hos äldre med fokus på socioekonomisk position. In: Andersson L, editor.
Socialgerontologi. Lund: Studentlitteratur; 2013. p.305-327.
2012
Fors S. Ojämnlikhet och hälsa i ett livsloppsperspektiv. In: Andersson L, Öberg P, editors. Jämlik
ålderdom? I samtiden och framtiden. Solna: Liber; 2012. p.112-136.
Lennartsson C, Fors S. Sociala skillnader i hälsa bland äldre. In: Rostila M, Toivanen S, editors. Den
orättvisa hälsan: om socioekonomiska skillnader i hälsa och livslängd. Stockholm: Liber; 2012. p.342360.
Page 9 of 12
Thorslund M. Hälsa och ohälsa bland äldre. In: Andersson L, Öberg P, editors. Jämlik ålderdom? I
samtiden och framtiden. Solna: Liber; 2012. p.137-163.
2009
Lennartsson C, Heimerson I. Äldres hälsa. In: Folkhälsorapport 2009. Stockholm: National Board of
Health and Welfare; 2009.
2005
Larsson K, Thorslund M. Äldres hälsa. In: Folkhälsorapport 2005. Stockholm: National Board of
Health and Welfare; 2005.
1998
Thorslund M. De allra äldstas situation. In: Äldreomsorgens vardag. Stockholm: Socialvetenskapliga
forskningsrådet, p.18-30; 1998.
1997
Kåreholt I. Arbetslösheten i Sverige under högkonjunkturen 1986-1990 – En deskriptiv studie av kortoch långvariga arbetslöshetsproblem. (Swedish unemployment during the business boom of 19861990 – a description of short-term and long-term unemployment problems). Stockholm: Swedish
Institute for Social Research, Stockholm University; 1997.
1996
Parker MG, Thorslund M, Ahacic K. De äldres funktionsförmåga. In: Äldres hälsa, behov och bruk av
service och vård. Ädel-utvärderingen 96:6. Stockholm: Socialstyrelsen; 1996.
Thorslund M, Lundberg O, Parker MG, Ahacic K. Klass, hälsa och funktionsförmåga bland de allra
äldsta. In: Äldres hälsa, behov och bruk av service och vård. Ädel-utvärderingen 96:6. Stockholm:
Socialstyrelsen; 1996.
1995
Korpi W, Kåreholt I. Chapter 6–10 in Korpi, K. Arbetslöshet och arbetslöshetsförsäkring in Sweden
(Unemployment and unemployment insurance in Sweden). Stockholm: EFA, Ministry of Labour; 1995.
Page 10 of 12
1993
Lennartsson C. Fritid och social förankring. Om förändring och sociala skillnader under perioden 1981
till 1991. In Rapport nr. 5 från 1991 års Levnadsnivåprojekt. Stockholm, Institutet för social forskning;
1993.
Lundberg O, Thorslund M. Att göra levnadsnivåundersökningar om de äldsta. Några erfarenheter från
fältarbete och formulärutveckling. Nordiskt seminarium kring statistik om service och omsorger för
äldre. Nordisk statistisk sekretariat. Tekniska rapporter 57, 147-155. Köpenhamn; 1993
Dissertations
2011
Schön P. Gender matters. Differences and change in disability and health among our oldest women
and men [PhD Thesis]. Stockholm: Department of Social Work, Stockholm University; 2011.
2010
Fors S. Blood on the tracks: life-course perspectives on health inequalities in later life [PhD Thesis].
Stockholm: Department of Social Work, Stockholm University. 2010.
2008
Agahi N. Leisure in late life: patterns of participation and relationship with health [PhD Thesis]. Aging
Research Center (ARC). Karolinska Institutet. 2008.
Haider SI. Socioeconomic differences in drug use among older people: Trends, polypharmacy, quality
and new drugs [PhD Thesis]. Aging Research Center (ARC). Karolinska Institutet. 2008.
Meinow B. Capturing health in the elderly population: Complex health problems, mortality, and the
allocation of home-help services [PhD Thesis]. Department of Social Work, Stockholm University.
2008.
2007
Beckman A. Medication management and patient compliance in old age [PhD Thesis]. Aging Research
Center (ARC). Karolinska Institutet. 2007.
2002
Ahacic K. Improvement in the Aging Population 1968-1991: Trends in Mobility and Dental Status [PhD
Thesis]. Stockholm: Department of Social Work, Stockholm University. 2002.
Page 11 of 12
2001
Lennartsson C. Still in Touch. Family Contacts, Activities and Health among Elderly in Sweden [PhD
Thesis]. Stockholm: Swedish Institute for Social Research, Stockholm University. 2001.
2000
Kåreholt I. Social Class and Mortality Risk [PhD Thesis]. Stockholm: Swedish Institute for Social
Research, Stockholm University. 2000.
1998
Manderbacka K. Questions on Survey Questions on health [PhD Thesis]. Stockholm: Swedish
Institute for Social Research, Stockholm University. 1998.
1994
Parker MG. Functional Limitations among the Oldest Old [PhD Thesis]. Acta Universitatis Upsaliensis.
Faculty of Medicine 518. Uppsala. 1994.
Editorials and Popular Publications
2011
Meinow B, Parker M, Thorslund M. Många äldre har inte själva förmåga att välja sin omsorg. Dagens
Nyheter, DN-debatt, 27 September 2011.
2010
Lennartsson C, Thorslund M. Vår allt längre ålderdom. Framtider 2010; 2:18-20. Institutet för
Framtidsstudier.
2007
Lennartsson C. Olika livssituation för äldre kvinnor och män. Välfärd 2007; 2:12-13. SCB.
Page 12 of 12