[Actions of the National Health Service on environmental health, 1952-1975 (author's transl)].
D002677:Chile; D004782:Environmental Health; D049673:History, 20th Century; D009313:National Health Programs / Q000266:history; D011634:Public Health / Q000266:history*; D012498:Sanitary Engineering / Q000266:history*
Acciones de saneamiento ambiental del Servicio Nacional de Salud, 1952-1957.