APA (7th ed.) Citation

PI, P., AH, S., M, M., V, A., & EB, H. (1987). Association between azathioprine therapy and lymphoma in rheumatoid disease. Journal of the Royal Society of Medicine, 80(7), 428. https://doi.org/10.1177/014107688708000711

Chicago Style (17th ed.) Citation

PI, Pitt, Sultan AH, Malone M, Andrews V, and Hamilton EB. "Association Between Azathioprine Therapy and Lymphoma in Rheumatoid Disease." Journal of the Royal Society of Medicine 80, no. 7 (1987): 428. https://doi.org/10.1177/014107688708000711.

MLA (9th ed.) Citation

PI, Pitt, et al. "Association Between Azathioprine Therapy and Lymphoma in Rheumatoid Disease." Journal of the Royal Society of Medicine, vol. 80, no. 7, 1987, p. 428, https://doi.org/10.1177/014107688708000711.

Warning: These citations may not always be 100% accurate.