Racial differences in sex hormone levels in women approaching the transition to menopause.

MLA

Manson, J. M., et al. “Racial Differences in Sex Hormone Levels in Women Approaching the Transition to Menopause.” Fertility and Sterility, vol. 75, no. 2, Feb. 2001, pp. 297–304. EBSCOhost, https://doi.org/10.1016/s0015-0282(00)01723-4.

APA

Manson, J. M., Sammel, M. D., Freeman, E. W., & Grisso, J. A. (2001). Racial differences in sex hormone levels in women approaching the transition to menopause. Fertility and Sterility, 75(2), 297–304. https://doi.org/10.1016/s0015-0282(00)01723-4

Chicago

Manson, J M, M D Sammel, E W Freeman, and J A Grisso. 2001. “Racial Differences in Sex Hormone Levels in Women Approaching the Transition to Menopause.” Fertility and Sterility 75 (2): 297–304. doi:10.1016/s0015-0282(00)01723-4.