title: Underweight--a nutritional risk.
mesh_terms: D001741:Black or African American; D044383:Black People; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D009748:Nutrition Disorders / Q000453:epidemiology*; D012424:Rural Population; D013019:South Africa