[Problems of hygiene and sanitation in the works of A. I. Hertsen].
D004781:Environmental Exposure; D005060:Europe; D006666:History of Medicine; D006801:Humans; D006920:Hygiene / Q000266:history*; D011634:Public Health / Q000266:history*
Problemy gigieny i sanitarii v trudakh A. I. Gertsena.