[Sociological studies on the causes of infant mortality in the Ruhr region. Part V. Breast feeding and artificial nutrition of young infants in the year 1957 in the Ruhr region].
D001942:Breast Feeding; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007227:Infant Nutritional Physiological Phenomena; D009752:Nutritional Status
BREAST FEEDING; INFANT MORTALITY; INFANT NUTRITION