title: Hepatitis-associated antigen and antibody in drug addicts and premarital sera.
mesh_terms: D000906:Antibodies / Q000032:analysis; D001219:Aspartate Aminotransferases / Q000097:blood; D006386:Hemagglutination Tests; D006511:Hepatitis B Antigens; D006515:Hepatitis B virus / Q000276:immunology*; D006801:Humans; D011291:Premarital Examinations; D019966:Substance-Related Disorders / Q000276:immunology*
chemical_list: D000906:Antibodies; D006511:Hepatitis B Antigens; D001219:Aspartate Aminotransferases