[Experience with the systematization of categories and laws of epidemiology. 3. Laws of epidemiology].
D003140:Communicable Disease Control; D003141:Communicable Diseases; D004812:Epidemiologic Methods; D004813:Epidemiology; D014586:USSR
Opyt sistematizatsii kategoriĭ i zakonov épidemiologii. 3. Zakony épidemiologii.