Cherchez l'homme?
D000208:Acute Disease; D002353:Carrier State; D003075:Coitus; D005260:Female; D006509:Hepatitis B / Q000209:etiology*; D006511:Hepatitis B Antigens / Q000032:analysis; D006716:Homosexuality; D006801:Humans; D008297:Male
D006511:Hepatitis B Antigens