A health and nutrition survey of heavy manual workers.
D000293:Adolescent; D000328:Adult; D004032:Diet; D006801:Humans; D007194:India; D007411:Intestinal Diseases, Parasitic / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D009748:Nutrition Disorders / Q000453:epidemiology*; D009787:Occupational Medicine