Cita APA

O'Connor, F. (1983). Endoscopic sphincterotomy and gall stone removal. Ulster Medical Society.

Chicago Style Citation

O'Connor, F. Endoscopic Sphincterotomy and Gall Stone Removal. Ulster Medical Society, 1983.

Cita MLA

O'Connor, F. Endoscopic Sphincterotomy and Gall Stone Removal. Ulster Medical Society, 1983.

Atenció: Aquestes cites poden no estar 100% correctes.