Supplementary Table 1. Protocols of intra-coronary provocative tests with Achetilcoline Author IC year Route Sueda Yes Dosage Administration Mandatory Modality pacing Yes Sides effects 20, 50 and Incremental doses over 2008 100 μg (LCA) 20 sec with at least a 3- shock (0.3%), (14) or 20, 50 and min interval between cardiac 80 μg (RCA) each injection tamponade in 5 ml NS * NsVT (1.1%). (0.1%), PAF (17.1%) Ong Yes 2, 20, 100, and Incremental doses over No/Bailout PAF (0.1%), 2014 200 μg (LCA) 3 min (15) or 80 μg bradycardia (RCA) * * (0.6%), catheter- NsVT (0.1%), induced spasm (0.1%) Wei 0.182, 1.82 Incremental doses over 2012 and 18.2 3 min (16) μg/ml in 2 ml coronary artery NS * * dissection) *** Yes Yes 20, 50, 100 μg Incremental doses over in 2 ml NS* * 3 min No/Bailout CRT-SAEs:02% (MI and No/Bailout Bradycardia (0.1%), NsVT (0.1%) *=Achetilcoline chloride (Neucholin-A, 30mg/2mL); * * =Achetilcoline chloride (Miochol, 20 mg/2mL); * * * Unpublished data about IC Ach test protocol used in our Institute: a drug formulation employed for ocular disease is diluted as reported. Intracoronary nitrates are usually administered at the end of the protocol and a final coronary angiography after nitrates is performed Ach=Achetilcoline; CAS=coronary artery spasm; CRT-SAEs=coronary reactivity testing related serious adverse events; IC=intra-coronary; LCA=left coronary artery; MI=myocardial infarction;, NS=normal solution; NsVT=nonsustained ventricular tachycardia; PAF=paroxysmal atrial fibrillation; RCA=right coronary artery.