On Trojan horses and surrogate mothers.
D000163:Acquired Immunodeficiency Syndrome / Q000517:prevention & control*; D006510:Hepatitis B Antibodies / Q000032:analysis*; D006512:Hepatitis B Core Antigens / Q000276:immunology; D006801:Humans; D065227:Transfusion Reaction
D006510:Hepatitis B Antibodies; D006512:Hepatitis B Core Antigens