title: Atypical hepatitis B virus in Spain?
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D002908:Chronic Disease; D005500:Follow-Up Studies; D006509:Hepatitis B / Q000276:immunology*; D006510:Hepatitis B Antibodies / Q000032:analysis*; D006511:Hepatitis B Antigens / Q000276:immunology; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006515:Hepatitis B virus / Q000276:immunology; D006801:Humans
chemical_list: D006510:Hepatitis B Antibodies; D006511:Hepatitis B Antigens; D006514:Hepatitis B Surface Antigens