Porphyrias.

MLA

James, M. F., and R. J. Hift. “Porphyrias.” British Journal of Anaesthesia, vol. 85, no. 1, July 2000, pp. 143–53. EBSCOhost, https://doi.org/10.1093/bja/85.1.143.

APA

James, M. F., & Hift, R. J. (2000). Porphyrias. British Journal of Anaesthesia, 85(1), 143–153. https://doi.org/10.1093/bja/85.1.143

Chicago

James, M F, and R J Hift. 2000. “Porphyrias.” British Journal of Anaesthesia 85 (1): 143–53. doi:10.1093/bja/85.1.143.