Additional file 1 of Using the Cochrane Central Register of Controlled Trials to identify clinical trial registration is insufficient: a cross-sectional study

Additional file 1: Table S1. The details of the unidentified studies through searching CENTRAL (N = 47). Abbreviations: CENTRAL, Cochrane Central Register of Controlled Trials; ID, Identifier; ANZCTR, Australian New Zealand Clinical Trials Registry; ChiCTR, Chinese Clinical Trial Registry; ICTRP, International Clinical Trials Registry Platform; IRCT, Iranian Registry of Clinical Trials; ISRCTN, International Standard Randomized Controlled Trial Number Register; JPRN, Japan Primary Registries Network; NTR, The Netherlands National Trial Register; ReBEC, Brazilian Clinical Trials Registry.