[Use of punch cards for collection and analysis of data on sanitary-epidemiologic state of country settlements].
D004813:Epidemiology; D006306:Health Surveys; D006801:Humans; D012424:Rural Population; D012499:Sanitation; D014586:USSR
Primenenie perkokart dlia nakopleniia i analiza dannykh o sanitarno-epidemiologicheskom sostoianii sel'skikh naselennykh punktov