title: Nutrition and infection field study in Guatemalan villages, 1959-1964. III. Field procedure, collection of data and methods of measurement.
mesh_terms: D002675:Child, Preschool; D003150:Community Health Workers; D003625:Data Collection / Q000379:methods; D006166:Guatemala / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D007223:Infant; D007231:Infant, Newborn; D007239:Infections / Q000453:epidemiology*; D009748:Nutrition Disorders / Q000178:diet therapy / Q000453:epidemiology*; D009752:Nutritional Status; D010865:Pilot Projects; D011446:Prospective Studies