APA (7th ed.) Citation

Key, T., Appleby, P., Reeves, G., Travis, R., Alberg, A., Barricarte, A., . . . Riboli, E. (2013). Sex hormones and risk of breast cancer in premenopausal women: A collaborative reanalysis of individual participant data from seven prospective studies.

Chicago Style (17th ed.) Citation

Key, T., et al. Sex Hormones and Risk of Breast Cancer in Premenopausal Women: A Collaborative Reanalysis of Individual Participant Data from Seven Prospective Studies. 2013.

MLA (9th ed.) Citation

Key, T., et al. Sex Hormones and Risk of Breast Cancer in Premenopausal Women: A Collaborative Reanalysis of Individual Participant Data from Seven Prospective Studies. 2013.