[Problems of epidemiology and prevention of viral hepatitis].
D006506:Hepatitis A / Q000453:epidemiology* / Q000517:prevention & control; D006801:Humans; D007558:Italy; D009113:Muramidase / Q000627:therapeutic use; D005719:gamma-Globulins / Q000627:therapeutic use
D005719:gamma-Globulins; D009113:Muramidase
Problemi di epidemiologia e di profilassi dell'epatite da virus.