[Ultraviolet regime in covered courts in the far north].
D001110:Arctic Regions; D003081:Cold Climate; D012279:Rickets / Q000628:therapy*; D012572:School Health Services; D012578:Schools, Nursery; D014467:Ultraviolet Therapy
Ul'trafioletovyĭ rezhim v krytykh dvorakh Kraĭnego Severa.