Patterns and determinants of infant mortality in developed nations, 1950-1975.
D000293:Adolescent; D002662:Child Health Services; D003710:Demography; D005006:Ethnicity; D005260:Female; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007231:Infant, Newborn; D008427:Maternal Health Services; D008962:Models, Theoretical; D011247:Pregnancy; D011253:Pregnancy in Adolescence; D012946:Social Welfare; D012959:Socioeconomic Factors; D014481:United States