title: Mass vaccination against hepatitis B in infants in Italy.
mesh_terms: D006509:Hepatitis B / Q000453:epidemiology / Q000517:prevention & control*; D017325:Hepatitis B Vaccines; D006801:Humans; D007115:Immunization Schedule; D007117:Immunization, Secondary; D007223:Infant; D007558:Italy; D014611:Vaccination; D014761:Viral Hepatitis Vaccines
chemical_list: D017325:Hepatitis B Vaccines; D014761:Viral Hepatitis Vaccines