Hepatitis B vaccine in a hospital.
D006510:Hepatitis B Antibodies / Q000032:analysis*; D017325:Hepatitis B Vaccines; D006801:Humans; D010564:Personnel, Hospital; D014761:Viral Hepatitis Vaccines / Q000276:immunology*
D006510:Hepatitis B Antibodies; D017325:Hepatitis B Vaccines; D014761:Viral Hepatitis Vaccines