Pre-emptive analgesia.

MLA

Katz, J., et al. “Pre-Emptive Analgesia.” BJA: British Journal of Anaesthesia, vol. 70, no. 3, Mar. 1993, pp. 378–79. EBSCOhost, https://doi.org/10.1093/bja/70.3.378.

APA

Katz, J., Kavanagh, B. P., Clairoux, M., & Sandler, A. N. (1993). Pre-emptive analgesia. BJA: British Journal of Anaesthesia, 70(3), 378–379. https://doi.org/10.1093/bja/70.3.378

Chicago

Katz, J, B P Kavanagh, M Clairoux, and A N Sandler. 1993. “Pre-Emptive Analgesia.” BJA: British Journal of Anaesthesia 70 (3): 378–79. doi:10.1093/bja/70.3.378.