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. 2011 Feb 9;6(2):e16878. doi: 10.1371/journal.pone.0016878

Figure 2. Flow diagram of reports of ongoing RCTs selected from International Clinical Trial Registries* via the World Health Organization (WHO) portal.

Figure 2

* International clinical trial registries: Clinicaltrials.gov, Australian New Zealand Clinical Trials Registry, Chinese Clinical Trial Register, Clinical Trials Registry - India, German Clinical Trials Register, Iranian Registry of Clinical Trials, Japan Primary Registries Network, International Standard Randomised Controlled Trials Number, The Netherlands National Trial Register, Sri Lanka Clinical Trials Registry.