APA (7th ed.) Citation

Sack, U., Kinne, R. W., Marx, T., Heppt, P., Bender, S., & Emmrich, F. (1993). Interleukin-6 in synovial fluid is closely associated with chronic synovitis in rheumatoid arthritis. Springer.

Chicago Style (17th ed.) Citation

Sack, U., R. W. Kinne, T. Marx, P. Heppt, S. Bender, and F. Emmrich. Interleukin-6 in Synovial Fluid Is Closely Associated with Chronic Synovitis in Rheumatoid Arthritis. Springer, 1993.

MLA (9th ed.) Citation

Sack, U., et al. Interleukin-6 in Synovial Fluid Is Closely Associated with Chronic Synovitis in Rheumatoid Arthritis. Springer, 1993.