title: [The rate of occurrence of previously unknown prolonged (chronic) illness among the urban population during the course of the entire calendar year].
mesh_terms: D000367:Age Factors; D002908:Chronic Disease / Q000175:diagnosis / Q000453:epidemiology; D009017:Morbidity; D012426:Russia; D012737:Sex Factors; D014505:Urban Population; D014798:Vital Statistics
vernacular_title: Chastota poiavleniia ranee neizvestnykh dlitel'no protekaiushchikh (khronicheskikh) zabolevaniĭ u gorodskogo naseleniia v techenie polnogo kalendarnogo goda.