Citação norma APA

Akcakaya, A., Ozkan, O. V., Okan, I., Kocaman, O., & Sahin, M. (2009). Endoscopic retrograde cholangiopancreatography during pregnancy without radiation. The WJG Press and Baishideng.

Citação norma Chicago

Akcakaya, Adem, Orhan Veli Ozkan, Ismail Okan, Orhan Kocaman, and Mustafa Sahin. Endoscopic Retrograde Cholangiopancreatography During Pregnancy Without Radiation. The WJG Press and Baishideng, 2009.

Citação norma MLA

Akcakaya, Adem, et al. Endoscopic Retrograde Cholangiopancreatography During Pregnancy Without Radiation. The WJG Press and Baishideng, 2009.

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