title: Drawbacks of nonrandomized trials in acute coronary syndromes.
authors.forename: Giuseppe G L
authors.initials: GG
authors.lastname: Biondi-Zoccai
authors.forename: Antonio
authors.initials: A
authors.lastname: Abbate
authors.forename: Pierfrancesco
authors.initials: P
authors.lastname: Agostoni
authors.forename: Marco
authors.initials: M
authors.lastname: Valgimigli
authors.forename: Giuseppe M
authors.initials: GM
authors.lastname: Sangiorgi
mesh_terms: D000789:Angina, Unstable / Q000175:diagnosis* / Q000628:therapy*; D006328:Cardiac Catheterization; D002986:Clinical Trials as Topic; D000077144:Clopidogrel; D017023:Coronary Angiography; D003627:Data Interpretation, Statistical; D006801:Humans; D009203:Myocardial Infarction / Q000175:diagnosis* / Q000628:therapy*; D010975:Platelet Aggregation Inhibitors / Q000627:therapeutic use; D019039:Platelet Glycoprotein GPIIb-IIIa Complex / Q000037:antagonists & inhibitors; D011725:Pyridines / Q000627:therapeutic use; D015607:Stents; D013577:Syndrome; D013988:Ticlopidine / Q000031:analogs & derivatives / Q000627:therapeutic use; D013997:Time Factors
chemical_list: D010975:Platelet Aggregation Inhibitors; D019039:Platelet Glycoprotein GPIIb-IIIa Complex; D011725:Pyridines; C446540:thienopyridine; D000077144:Clopidogrel; D013988:Ticlopidine