Williams, R. J., Tse, T., DiPiazza, K., & Zarin, D. A. (2015). Terminated Trials in the ClinicalTrials.gov Results Database: Evaluation of Availability of Primary Outcome Data and Reasons for Termination. PLoS One.
Citação norma ChicagoWilliams, Rebecca J., Tony Tse, Katelyn DiPiazza, and Deborah A. Zarin. "Terminated Trials in the ClinicalTrials.gov Results Database: Evaluation of Availability of Primary Outcome Data and Reasons for Termination." PLoS One 2015.
Citação norma MLAWilliams, Rebecca J., Tony Tse, Katelyn DiPiazza, and Deborah A. Zarin. "Terminated Trials in the ClinicalTrials.gov Results Database: Evaluation of Availability of Primary Outcome Data and Reasons for Termination." PLoS One 2015.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.