Hepatitis-B surface antigen in commercial gamma-globulin.
D004340:Drug Contamination; D006510:Hepatitis B Antibodies / Q000032:analysis; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D005719:gamma-Globulins / Q000032:analysis*
D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens; D005719:gamma-Globulins