00638naa#a2200229#i#450# EN\INFRA-M\bibl\2889 20241001014307.2 2075-4094 20141105b2014####ek#y0engy0150####ca RUS RU Regional of medico-demographic processes in the Tver region Journal article Moscow INFRA-M Academic Publishing LLC. 2014 3 с. Journal article local Stepanova Yu. Petrov V. Rybakova M. Korolyuk Ekaterina Zhukov Sergey Zaytseva A. zh-szf.ru