APA (7th ed.) Citation

Lewis, M. A., MacRae, K. D., Kühl-Habich1, D., Bruppacher, R., Heinemann, L. A., & Spitzer, W. O. (1999). The differential risk of oral contraceptives: The impact of full exposure history. Human reproduction (Oxford), 14(6), 1493-1499. https://doi.org/10.1093/humrep/14.6.1493

Chicago Style (17th ed.) Citation

Lewis, Michael A., Kenneth D. MacRae, Dörthe Kühl-Habich1, Rudolf Bruppacher, Lothar A.J Heinemann, and Walter O. Spitzer. "The Differential Risk of Oral Contraceptives: The Impact of Full Exposure History." Human Reproduction (Oxford) 14, no. 6 (1999): 1493-1499. https://doi.org/10.1093/humrep/14.6.1493.

MLA (9th ed.) Citation

Lewis, Michael A., et al. "The Differential Risk of Oral Contraceptives: The Impact of Full Exposure History." Human Reproduction (Oxford), vol. 14, no. 6, 1999, pp. 1493-1499, https://doi.org/10.1093/humrep/14.6.1493.