National transfusion hepatitis study. Progress report.
D001782:Blood Donors; D006509:Hepatitis B / Q000453:epidemiology / Q000209:etiology* / Q000517:prevention & control; D006511:Hepatitis B Antigens; D006801:Humans; D065227:Transfusion Reaction; D005719:gamma-Globulins / Q000627:therapeutic use
D006511:Hepatitis B Antigens; D005719:gamma-Globulins