Vitamin B12 and homocysteine.

MLA

Ray, Joel G., and David E. C. Cole. “Vitamin B12 and Homocysteine.” Canadian Medical Association Journal (CMAJ), vol. 173, no. 11, Nov. 2005, pp. 1359–60. EBSCOhost, https://doi.org/10.1503/cmaj.1050153.

APA

Ray, J. G., & Cole, D. E. C. (2005). Vitamin B12 and homocysteine. Canadian Medical Association Journal (CMAJ), 173(11), 1359–1360. https://doi.org/10.1503/cmaj.1050153

Chicago

Ray, Joel G., and David E. C. Cole. 2005. “Vitamin B12 and Homocysteine.” Canadian Medical Association Journal (CMAJ) 173 (11): 1359–60. doi:10.1503/cmaj.1050153.