APA (7th ed.) Citation

Regev, A., & Schiff, E. R. (2001). Liver disease in the elderly. Gastroenterology clinics of North America, 30(2), 547. https://doi.org/10.1016/S0889-8553(05)70195-3

Chicago Style (17th ed.) Citation

Regev, A., and E R. Schiff. "Liver Disease in the Elderly." Gastroenterology Clinics of North America 30, no. 2 (2001): 547. https://doi.org/10.1016/S0889-8553(05)70195-3.

MLA (9th ed.) Citation

Regev, A., and E R. Schiff. "Liver Disease in the Elderly." Gastroenterology Clinics of North America, vol. 30, no. 2, 2001, p. 547, https://doi.org/10.1016/S0889-8553(05)70195-3.