Lactation and the risk of breast cancer.
Kelsey
J L
JL
John
E M
EM
D000367:Age Factors; D001943:Breast Neoplasms / Q000209:etiology*; D005260:Female; D006801:Humans; D007774:Lactation; D008875:Middle Aged; D017697:Premenopause; D012307:Risk Factors