[Epidemiological significance of patients with chronic forms of epidemic hepatitis].
D058872:Epidemics; D006505:Hepatitis; D006506:Hepatitis A / Q000635:transmission*; D014765:Viral Vaccines
D014765:Viral Vaccines
HEPATITIS, INFECTIOUS/transmission
Epidemiologicheskoe znachenie bol'nykh khronicheskimi formami epidemicheskogo gepatita.