title: [Problems of the living in ultra-deep underground structures from a view point of physiological hygiene].
authors: Department of Physiological Hygiene, Institute of Public Health, Shirokanedai, Tokyo, Japan.
authors: Y
authors: Y
authors: Tochihara
authors: M
authors: M
authors: Asano
mesh_terms: D000531:Altitude; D004780:Environment, Controlled; D004782:Environmental Health; D006801:Humans; D006920:Hygiene; D008027:Light; D009622:Noise; D010827:Physiology