Breast-feeding and managed care.
Brickner
G R
GR
D000328:Adult; D001942:Breast Feeding; D002662:Child Health Services / Q000706:statistics & numerical data*; D005260:Female; D006279:Health Maintenance Organizations / Q000191:economics*; D006801:Humans; D007231:Infant, Newborn; D012107:Research Design / Q000592:standards