[Experience with prevention examinations of the rural population of the Leningrad area].
D003153:Community Health Services; D006801:Humans; D008403:Mass Screening; D011315:Preventive Medicine; D012424:Rural Population; D012426:Russia
Ob opyte provedeniia profilakticheskikh osmotrov sel'skogo naseleniia v Leningradskoĭ oblasti.