Cita APA

Krishnan, E., & Fries, J. F. (2004). Measuring effectiveness of drugs in observational databanks: Promises and perils. BioMed Central.

Citación estilo Chicago

Krishnan, Eswar, and James F. Fries. Measuring Effectiveness of Drugs in Observational Databanks: Promises and Perils. BioMed Central, 2004.

Cita MLA

Krishnan, Eswar, and James F. Fries. Measuring Effectiveness of Drugs in Observational Databanks: Promises and Perils. BioMed Central, 2004.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.