APA (7th ed.) Citation

Haag, G. M., Jäger, D., Stremmel, W., Schemmer, P., Sauer, P., & Gotthardt, D. (2015). Outcomes and risk factors for cancer patients undergoing endoscopic intervention of malignant biliary obstruction. BioMed Central.

Chicago Style (17th ed.) Citation

Haag, Georg Martin, Dirk Jäger, Wolfgang Stremmel, Peter Schemmer, Peter Sauer, and Daniel Gotthardt. Outcomes and Risk Factors for Cancer Patients Undergoing Endoscopic Intervention of Malignant Biliary Obstruction. London: BioMed Central, 2015.

MLA (9th ed.) Citation

Haag, Georg Martin, et al. Outcomes and Risk Factors for Cancer Patients Undergoing Endoscopic Intervention of Malignant Biliary Obstruction. BioMed Central, 2015.