Fortner, R. T., Schock, H., Kaaks, R., Lehtinen, M., Pukkala, E., Lakso, H., . . . Surcel, H. (2014). Early Pregnancy Sex Steroids and Maternal Breast Cancer: A nested case-control study. Cancer Res.
استشهاد بنمط شيكاغوFortner, Renée T., et al. "Early Pregnancy Sex Steroids and Maternal Breast Cancer: A Nested Case-control Study." Cancer Res 2014.
MLA استشهادFortner, Renée T., et al. "Early Pregnancy Sex Steroids and Maternal Breast Cancer: A Nested Case-control Study." Cancer Res 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.