APA (7th ed.) Citation

Azar, R., Cote, G. A., Ansstas, M., Pawa, R., Edmundowicz, S. A., & Jonnalagadda, S. (2010). Difficult biliary cannulation.

Chicago Style (17th ed.) Citation

Azar, Riad, Gregory A. Cote, Michael Ansstas, Rishi Pawa, Steven A. Edmundowicz, and Sreenivasa Jonnalagadda. Difficult Biliary Cannulation. 2010.

MLA (9th ed.) Citation

Azar, Riad, et al. Difficult Biliary Cannulation. 2010.