title: [Problems of environmental optimization in the European North].
authors.forename: M Kh
authors.initials: MKh
authors.lastname: Shraga
authors.forename: S G
authors.initials: SG
authors.lastname: Sukhanov
authors.forename: Iu R
authors.initials: IuR
authors.lastname: Tedder
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003081:Cold Climate; D004787:Environmental Pollution / Q000517:prevention & control; D006304:Health Status; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008875:Middle Aged; D009784:Occupational Diseases / Q000209:etiology / Q000517:prevention & control; D016272:Occupational Health; D012307:Risk Factors; D012426:Russia