Delivering the services.
D000349:Africa; D001208:Asia; D002489:Central America; D002648:Child; D002662:Child Health Services / Q000266:history; D002664:Child Nutritional Physiological Phenomena; D002675:Child, Preschool; D003695:Delivery of Health Care; D003906:Developing Countries; D005060:Europe; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007223:Infant; D007228:Infant Nutrition Disorders / Q000517:prevention & control; D007732:Kwashiorkor / Q000266:history; D008427:Maternal Health Services / Q000266:history; D009656:North America; D013020:South America