APA (7th ed.) Citation

AP, G., JA, E., SG, H., JD, B., & KW, K. (2004). Surgeon volume and operative mortality. New England Journal of Medicine, 350(12), 1256.

Chicago Style (17th ed.) Citation

AP, Gutow, Erlebacher JA, Hubbard SG, Birkmeyer JD, and Kizer KW. "Surgeon Volume and Operative Mortality." New England Journal of Medicine 350, no. 12 (2004): 1256.

MLA (9th ed.) Citation

AP, Gutow, et al. "Surgeon Volume and Operative Mortality." New England Journal of Medicine, vol. 350, no. 12, 2004, p. 1256.