title: ["Copy-pair" model for calculating the effect of the water factor on the health status of residents in an epidemiological study].
abstract: The paper presents the results of testing 4 main models of copy-pair examinations in some cities and towns of the country, which have been recommended for singling out the influence of a water factor on human health in epidemiological surveys. A locality with varying water supply (drinking water quality) in its different parts is shown to be methodologically the best model.
authors.forename: Iu A
authors.initials: IuA
authors.lastname: Rakhmanin
authors.forename: R I
authors.initials: RI
authors.lastname: Mikhaĭlova
authors.forename: L F
authors.initials: LF
authors.lastname: Kir'ianova
authors.forename: I N
authors.initials: IN
authors.lastname: Ryzhova
authors.forename: E M
authors.initials: EM
authors.lastname: Sevost'ianova
mesh_terms: D016021:Epidemiologic Studies; D006305:Health Status Indicators; D006801:Humans; D012426:Russia / Q000453:epidemiology; D014881:Water Supply