APA (7th ed.) Citation

Ryberg, A. A., Fitzgibbons, R. J. J., Tseng, A., Maffi, T. R., Burr, L. J., & Doris, P. E. (1997). Abnormal cholangiograms during laparoscopic cholecystectomy. Is treatment always necessary? Surgical Endoscopy, 11(5), 456. https://doi.org/10.1007/s004649900389

Chicago Style (17th ed.) Citation

Ryberg, A A., R J Jr Fitzgibbons, A. Tseng, T R. Maffi, L J. Burr, and P E. Doris. "Abnormal Cholangiograms During Laparoscopic Cholecystectomy. Is Treatment Always Necessary?" Surgical Endoscopy 11, no. 5 (1997): 456. https://doi.org/10.1007/s004649900389.

MLA (9th ed.) Citation

Ryberg, A A., et al. "Abnormal Cholangiograms During Laparoscopic Cholecystectomy. Is Treatment Always Necessary?" Surgical Endoscopy, vol. 11, no. 5, 1997, p. 456, https://doi.org/10.1007/s004649900389.