Breaking point.
D004506:Education, Nursing / Q000458:organization & administration*; D006305:Health Status Indicators; D006703:Ill-Housed Persons / Q000706:statistics & numerical data; D006801:Humans; D009017:Morbidity; D009740:Nursing Staff / Q000458:organization & administration; D012426:Russia / Q000453:epidemiology; D013222:State Medicine / Q000458:organization & administration*