APA aipamena

Ehrhardt, S., Appel, L. J., & Meinert, C. L. (2015). Trends in National Institutes of Health Funding for Clinical Trials Registered in ClinicalTrials.gov. JAMA.

Chicago Style aipamena

Ehrhardt, Stephan, Lawrence J. Appel, and Curtis L. Meinert. "Trends in National Institutes of Health Funding for Clinical Trials Registered in ClinicalTrials.gov." JAMA 2015.

MLA aipamena

Ehrhardt, Stephan, Lawrence J. Appel, and Curtis L. Meinert. "Trends in National Institutes of Health Funding for Clinical Trials Registered in ClinicalTrials.gov." JAMA 2015.