Medical help and maternal nursing care in the life of low-income families.
D002648:Child; D002675:Child, Preschool; D005190:Family; D005260:Female; D005767:Gastrointestinal Diseases / Q000451:nursing; D006701:Home Nursing; D006760:Hospitalization; D006801:Humans; D008297:Male; D008404:Massachusetts; D010287:Parent-Child Relations; D010290:Parents; D012140:Respiratory Tract Diseases / Q000451:nursing; D012871:Skin Diseases / Q000451:nursing; D012924:Social Conditions