title: [Proceedings of the Fiftyth Annual Meeting the Japanese Society for Hygiene, March 30-April 2, 1980 (author's transl)].
mesh_terms: D000818:Animals; D003226:Congresses as Topic; D004782:Environmental Health; D006801:Humans; D006920:Hygiene; D007564:Japan; D011634:Public Health; D012955:Societies, Medical