Online Appendix for the following February 21 JACC article TITLE: The Risk of Hemorrhage Among Patients With Warfarin-Associated Coagulopathy AUTHORS: David A. Garcia, MD, Department of Medicine, University of New Mexico, Albuquerque, New Mexico, Susan Regan, PhD, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, Mark Crowther, MD, Department of Medicine, McMaster University, Hamilton, Ontario, Canada, Elaine M. Hylek, MD, MPH, Department of Medicine, General Internal Medicine Research Unit, Boston University School of Medicine, Boston Medical Center, Boston, Massachusetts APPENDIX The following practices and directors participated in the study (the sites are listed in decreasing order of number of patients enrolled): Lutheran General Hospital, Niles, Illinois—W. Fried, M. Pubentz; Physicians, Inc., Lima, Ohio—D. Parker; Idaho Cardiology Associates, Boise, Idaho—F. Badke; North Clinic, Robbinsdale, Minnesota—V. Krug; Rockwood Clinic P.S.-Main, Spokane, Washington—J.S. Pennock; Wenatchee Valley Clinic, Wenatchee, Washington—R. Kirby Primm, L. Vaughn; Framingham Heart Center, Framingham, Massachusetts— J. Dangel, S.R. Hewett; Clinic Pharmacy Consultants-Brainerd Medical Center, Brainerd, Minnesota—B. Twamley, R. Sorenson; Woodland Healthcare, Woodland, California—L. Smith, T. Fajerson; Cardiology, P.C., Syracuse, New York—S. O’Donnell; Health Care American Corp., Bradenton, Florida--C. Hoffman; DuPage Medical Group--Department of Cardiology, Winfield, Illinois—N. Kinsley; Camino Medical Group, Sunnyvale, California—S. Edwards; Ohio Valley Heartcare, Evansville, Indiana—L. Janeira, J. Robb; Desert Medical Group/Oasis I.P.A., Palm Springs, California—H.F. Bellaci, J. Bellaci; Anchor Health Center, Naples, Florida—M. Means; Sutter Gould Medical Foundation, Modesto, California—J.E. Baker; Hannibal Clinic Inc., Hannibal, Missouri—L. Chalton; Saratoga Cardiology, Saratoga Springs, New York—R. Sheldon, D. Kandath; Lima Memorial Hospital, Lima, Ohio—C.L. Thompson, J. Recker; Staten Island University Hospital, Staten Island, New York—M. Howard; Jacksonville Cardiovascular Clinic, Jacksonville, Florida—R.A. Benson; River Valley Healthcare, Silvis, Illinois—K.Carroll; Family Physician Incorporated, N. Canton, Ohio—H. Marshall; Internal Medicine of Northern Michigan, Petoskey, Michigan—P.D. Blanchard; Redmond Internal Medicine, Redmond Oregon—D. Palmer, C. Gangan; Grove Hill Medical Center, New Britain, Connecticut—M.S. Werner; Olean Medical Group, Olean, New York— H.D. Storch, T.L. Buzzard; Internal Medicine Associates of Greenville, Greenville, South Carolina—J.S. Moore; Magan Medical Clinic, Covina, California—R. Sakamoto; Owatonna Clinic--Mayo Health System, Owatonna, Minnesota—T. Price; Dearborn Cardiology, Dearborn, Michigan—S. Dabbous; Westchester Medical Group, White Plains, New York—B. Newman; Central Cardiology Medical Clinic, Bakersfield, California—W. Nyitray; Salem Clinic, Salem, Oregon—M. Smith; East Carolina University, Greenville, North Carolina—C. Estrada; Northwest Primary Care Group, Milwaukie, Oregon—D. McAnulty, P. Devisser; The William W. Backus Hospital, Norwich, Connecticut—S. Johnson; Jefferson City Medical Group, Jefferson City, Missouri—C. Balcer; Saint Louis University Department of Neurology, St. Louis, Missouri—S. Cruz-Flores, E. Holzemer; Wellspan Health-Yorktowne, York, Pennsylvania—J.D. Horton; Mercy Medical Center, Canton, Ohio—M. Cudnik; Cardiovascular Group, Lawrenceville, Georgia—B. Craig-Allen; Asheville Cardiology Assoc., Asheville, North Carolina—W. Wharton, A. Moser; Cardiac Consultants Chartered, Bethesda, Maryland—L. Chappell; Valley Care Health System, Pleasanton, California—N. Huynh; Bloomington Hospital, Bloomington, Indiana—K. Kalotta; Samaritan Anticoagulation Service, Corvallis, Oregon—R. Stockberger; Covenant Clinic, Waterloo, Iowa—D. Kohls; DartmouthHitchcock Nashua, Nashua, New Hampshire—L. Cook; Cardiology Consultants, P.C., Hamden, Connecticut—A.M. Radoff; Seventh Avenue Family Health Center, Fort Lauderdale, Florida—J. Berges; Diagnostic Cardiology, P.A., Jacksonville, Florida—P.D. Kuhlman; Norlanco Medical Associates, Elizabethtown, Pennsylvania—J. Rittenhouse; University of Texas Medical Branch, Galveston, Texas—H. von Marensdorff; Bend Memorial Clinic, Bend, Oregon—M. Hegewald; Memorial Primary Care Center, Hollywood, Florida—J. Beck; Batey Cardiovascular Center, Bradenton, Florida—D. Calabrila, E.J. Sanchez; Western Montana Clinic, Missoula, Montana—W.B. Bekemeyer, D. Ramsey; Winona Clinic, Winona, Minnesota—L. Tschumper; Cardiac Consultants, Lancaster, Pennsylvania—M. Lesko; Hattiesburg Clinic, Hattiesburg, Mississippi—A.J. Jackson; Bryn Mawr Medical Specialist Association, Bryn Mawr, Pennsylvania—H. Mayer; River Valley Healthcare, Moline, Illinois—B. Cady; Cardiovascular Group, Snellville, Georgia--L. Lesser; Medicor, Bridgewater, New Jersey—P. Saulino, C. Hartpence; Bond Clinic, P.A., Winter Haven, Florida—P. Lundsford. K. Bhatia; University of CincinnatiPharmacy Anticoagulation Services, Cincinnati, Ohio—J. McQueen; Senior Healthcare Center, Gainesville, Florida—M.L. Breeser; North Canton Medical Foundation, North Canton, Ohio-- H.M. Schenker; Manor Family Health Center, Millersville, Pennsylvania—J. Ichter; Cardiology Associates of Central Florida, Ocala, Florida—L. McDaniel; Cardiovascular Associates Ltd., Chesapeake, Virginia—S.R. Jones; Woodburn Medical Clinic, Woodburn, Oregon—F. Golden; Rockwood Clinic North, Spokane, Washington—C. Laudenbach, J.S. Pennock; Wachspress, Shatkin & Rainear, Vineland, New Jersey—L. Assink; Chambersburg Hospital, Chambersburg, Pennsylvania—D. Grant; Wellspan Pharmacy-Dallastown, Dallastown, Pennsylvania—T.G. Williams; Pulmonary & Critical Care Associates, Ypsilanti, Michigan—W.F. Patton; Island Cardiac Specialist, Mineola, New York—P. Ragno; Portland Cardiovascular Institute 2, Portland, Oregon—R. Chelfky; River Valley Healthcare ACS, Bettendorf, Iowa—W. Langley; Consultants in Cardiology, Farmington Hills, Michigan—G.M. McKendrick; Portland Cardiovascular Institute 1, Portland, Oregon—R. Chelfky; Cleveland Clinic Florida, Weston, Florida—B. Fernandez; BiState Medical Consultants, St. Louis, Missouri—P.M. Stein, C.B. Lomnel; Medical Consultants, P.C., Muncie, Indiana—J. Bow; Cardiovascular Associates of South Florida, Coral Gables, Florida—J.S. Palmer; Parkway Cardiology Associates, Oak Ridge, Tennessee—S. Cooke; Northwest Georgia Diagnostic Clinic, Gainesville, Georgia—J. Jackson; Cardiovascular Associates, Kingsport, Tennessee— L.H. Cox; Heart Place, Dallas, Texas—C.N. Bowers; Rockwood Clinic, Spokane, Washington—C. Laudenbach; J.S. Pennock; Delaware Heart Group, Newark, Delaware—C. Bowens; Abilene Diagnostic Clinic, Abilene, Texas—P. Howard.