Unilateral suckling and breast cancer.
D000230:Adenocarcinoma / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control*; D000328:Adult; D000368:Aged; D001942:Breast Feeding; D001943:Breast Neoplasms / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control*; D002681:China; D003466:Cultural Characteristics; D005260:Female; D007839:Functional Laterality; D006723:Hong Kong; D006801:Humans; D007774:Lactation; D008875:Middle Aged; D011247:Pregnancy; D012306:Risk