APA aipamena

Farmer, R. D. T., Lawrenson, R. A., Todd, J., Williams, T. J., MacRae, K. D., Tyrer, F., & Leydon, G. M. (2000). A comparison of the risks of venous thromboembolic disease in association with different combined oral contraceptives. Blackwell Science Inc.

Chicago Style aipamena

Farmer, R D T., R A. Lawrenson, J-C Todd, T J. Williams, K D. MacRae, F. Tyrer, and G M. Leydon. A Comparison of the Risks of Venous Thromboembolic Disease in Association With Different Combined Oral Contraceptives. Blackwell Science Inc, 2000.

MLA aipamena

Farmer, R D T., et al. A Comparison of the Risks of Venous Thromboembolic Disease in Association With Different Combined Oral Contraceptives. Blackwell Science Inc, 2000.