APA (7th ed.) Citation

CC, S., SH, L., Sung, C., & Lin, S. (2011). Images in clinical medicine. Nonobstructive hydronephrosis with secondary polycythemia. New England Journal of Medicine, 365(1), e1. https://doi.org/10.1056/NEJMicm1013847

Chicago Style (17th ed.) Citation

CC, Sung, Lin SH, Chih-Chien Sung, and Shih-Hua Lin. "Images in Clinical Medicine. Nonobstructive Hydronephrosis with Secondary Polycythemia." New England Journal of Medicine 365, no. 1 (2011): e1. https://doi.org/10.1056/NEJMicm1013847.

MLA (9th ed.) Citation

CC, Sung, et al. "Images in Clinical Medicine. Nonobstructive Hydronephrosis with Secondary Polycythemia." New England Journal of Medicine, vol. 365, no. 1, 2011, p. e1, https://doi.org/10.1056/NEJMicm1013847.