Cita APA

Fortner, R. T., Eliassen, A. H., Spiegelman, D., Willett, W. C., Barbieri, R. L., & Hankinson, S. E. (2013). Premenopausal endogenous steroid hormones and breast cancer risk: Results from the Nurses' Health Study II. BioMed Central.

Chicago Style Citation

Fortner, Renée T., A Heather Eliassen, Donna Spiegelman, Walter C. Willett, Robert L. Barbieri, i Susan E. Hankinson. Premenopausal Endogenous Steroid Hormones and Breast Cancer Risk: Results From the Nurses' Health Study II. BioMed Central, 2013.

Cita MLA

Fortner, Renée T., et al. Premenopausal Endogenous Steroid Hormones and Breast Cancer Risk: Results From the Nurses' Health Study II. BioMed Central, 2013.