Nichols, H. B., Visvanathan, K., Newcomb, P. A., Hampton, J. M., Egan, K. M., Titus-Ernstoff, L., & Trentham-Dietz, A. (2011). Bilateral Oophorectomy in Relation to Risk of Postmenopausal Breast Cancer: Confounding by Nonmalignant Indications for Surgery? Oxford University Press.

Nichols, Hazel B., Kala Visvanathan, Polly A. Newcomb, John M. Hampton, Kathleen M. Egan, Linda Titus-Ernstoff, và Amy Trentham-Dietz. Bilateral Oophorectomy in Relation to Risk of Postmenopausal Breast Cancer: Confounding By Nonmalignant Indications for Surgery? Oxford University Press, 2011.

Nichols, Hazel B., et al. Bilateral Oophorectomy in Relation to Risk of Postmenopausal Breast Cancer: Confounding By Nonmalignant Indications for Surgery? Oxford University Press, 2011.