Randomized, cross-over, controlled comparison of two inactivated hepatitis A vaccines.
Andre
F E
FE
D018592:Cross-Over Studies; D022362:Hepatitis A Vaccines / Q000276:immunology*; D006801:Humans; D016032:Randomized Controlled Trials as Topic; D014613:Vaccines, Attenuated / Q000276:immunology
D022362:Hepatitis A Vaccines; D014613:Vaccines, Attenuated