APA (7th ed.) Citation

American College of Physicians, Warthin, A. S., Weller, C. V., Pincoffs, M. C., & Clough, P. W. Annals of internal medicine. [American College of Physicians].

Chicago Style (17th ed.) Citation

American College of Physicians, Aldred Scott Warthin, Carl Vernon Weller, Maurice C. Pincoffs, and Paul W. Clough. Annals of Internal Medicine. [Philadelphia, etc.]: [American College of Physicians].

MLA (9th ed.) Citation

American College of Physicians, et al. Annals of Internal Medicine. [American College of Physicians].