APA (7th ed.) Citation

Shields, L. I., Files, J. A., Doll, D. C., & Greenberg, B. R. (1986). Ranitidine and agranulocytosis. Annals of Internal Medicine, 104(1), 128. https://doi.org/10.7326/0003-4819-104-1-128_1

Chicago Style (17th ed.) Citation

Shields, L I., J A. Files, D C. Doll, and B R. Greenberg. "Ranitidine and Agranulocytosis." Annals of Internal Medicine 104, no. 1 (1986): 128. https://doi.org/10.7326/0003-4819-104-1-128_1.

MLA (9th ed.) Citation

Shields, L I., et al. "Ranitidine and Agranulocytosis." Annals of Internal Medicine, vol. 104, no. 1, 1986, p. 128, https://doi.org/10.7326/0003-4819-104-1-128_1.