Etiology and Use of the “Hanging Drop” Technique: A Review

Table 3

Clinical trial registries that were screened for evidence of missing information.

U.S. National Institutes of Health	http://www.clinicaltrials.gov/
International Clinical Trials Registry Platform (ICTRP) of the World Health Organization	http://www.who.int/ictrp/en/
Australian New Zealand Clinical Trials Registry (ANZCTR)	http://www.anzctr.org.au/
Clinical Trials Registry-India	http://ctri.nic.in/
European Union Clinical Trials Register (EU-CTR)	https://www.clinicaltrialsregister.eu/
German Clinical Trials Register (DRKS)	http://www.drks.de/
Netherlands Trial Register	http://www.trialregister.nl/
International Standard Randomized Controlled Trial Number Register	http://www.isrctn.org/