[Longevity in cities according to data of the years 1959 and 1970].
D006801:Humans; D008136:Longevity; D012426:Russia; D013223:Statistics as Topic; D014505:Urban Population
Prodolzhitel'nost' zhizni v nekotorykh gorodakh na daty perepiseĭ 1959 i 1970 gg.