[20 years of health protection in the rural areas of the German Democratic Republic].
D000383:Agriculture; D005859:Germany, East; D006801:Humans; D006920:Hygiene; D007226:Infant Mortality; D009747:Nutritional Physiological Phenomena; D012423:Rural Health; D013222:State Medicine
20 Jahre Gesundheitsschutz auf dem Lande in der D. D. R.