APA (7th ed.) Citation

Lassen, M. R., Raskob, G. E., Gallus, A., Pineo, G., Chen, D., & Portman, R. J. (2009). Apixaban or Enoxaparin for Thromboprophylaxis after Knee Replacement. The New England journal of medicine, 361(6), 594-604. https://doi.org/10.1056/NEJMoa0810773

Chicago Style (17th ed.) Citation

Lassen, Michael Rud, Gary E. Raskob, Alexander Gallus, Graham Pineo, Dalei Chen, and Ronald J. Portman. "Apixaban or Enoxaparin for Thromboprophylaxis After Knee Replacement." The New England Journal of Medicine 361, no. 6 (2009): 594-604. https://doi.org/10.1056/NEJMoa0810773.

MLA (9th ed.) Citation

Lassen, Michael Rud, et al. "Apixaban or Enoxaparin for Thromboprophylaxis After Knee Replacement." The New England Journal of Medicine, vol. 361, no. 6, 2009, pp. 594-604, https://doi.org/10.1056/NEJMoa0810773.