Double dose of protection.
Sax
S
S
D006506:Hepatitis A / Q000517:prevention & control*; D022362:Hepatitis A Vaccines; D006801:Humans; D007115:Immunization Schedule; D014761:Viral Hepatitis Vaccines / Q000008:administration & dosage*
D022362:Hepatitis A Vaccines; D014761:Viral Hepatitis Vaccines