Horejsi, J HLA system and its association to chronic hepatitis and persistence of HBsAg in the organism. [electronic resource] - Tijdschrift voor gastro-enterologie 1978 - 457-64 p. digital Publication Type: Journal Article ISSN: 0049-3899 Subjects--Topical Terms: Carrier State--immunologyChronic DiseaseHLA Antigens--analysisHepatitis--immunologyHepatitis B--immunologyHepatitis B Surface Antigens--analysisHumans