APA-viite

Scherer, R. W., Huynh, L., Ervin, A., Taylor, J., & Dickersin, K. (2013). ClinicalTrials.gov registration can supplement information in abstracts for systematic reviews: A comparison study. BioMed Central.

Chicago-tyylinen lähdeviittaus

Scherer, Roberta W., Lynn Huynh, Ann-Margret Ervin, Jakeisha Taylor, ja Kay Dickersin. ClinicalTrials.gov Registration Can Supplement Information in Abstracts for Systematic Reviews: A Comparison Study. BioMed Central, 2013.

MLA-viite

Scherer, Roberta W., et al. ClinicalTrials.gov Registration Can Supplement Information in Abstracts for Systematic Reviews: A Comparison Study. BioMed Central, 2013.

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