Before revision: In 1966, Pavlovsky introduced the concept of natural nidality or focality, defined by the idea that microscale disease foci are determined by the entire ecosystem.Galuzo, I.G.
After revision: EvgeniyIn 1966, Pavlovsky introduced the concept of natural nidality or focality, defined by the idea that microscale disease foci are determined by the entire ecosystem.Galuzo, I.G.