Lactation in relation to postmenopausal breast cancer.
Newcomb PA, Egan KM, Titus-Ernstoff L, Trentham-Dietz A, Greenberg ER, Baron JA, Willett WC, Stampfer MJ.
Newcomb PA, et al.
Am J Epidemiol. 1999 Jul 15;150(2):174-82. doi: 10.1093/oxfordjournals.aje.a009977.
Am J Epidemiol. 1999.
PMID: 10412962