APA Citation

Symmons, D. P., Farr, M., Salmon, M., & Bacon, P. A. (1989). Lymphopenia in rheumatoid arthritis.

Chicago Style Citation

Symmons, D P., M. Farr, M. Salmon, and P A. Bacon. Lymphopenia in Rheumatoid Arthritis. 1989.

MLA Citation

Symmons, D P., M. Farr, M. Salmon, and P A. Bacon. Lymphopenia in Rheumatoid Arthritis. 1989.

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