1. 1 Horowitz B US Patent Nos. 4,613,501 and 4,841,023.
2. 2 Prince AM US Patent No. 4,308,250.
3. 3 Manucci PM Outbreak of hepatitis A in Italian hemophilia A patients treated with solvent-detergent concentrate. 20th Int Congr Wld Fed Hemophilia, 1992, p 93.
4. Acute hepatitis A in haemophiliacs;Gerritzen;Lancet,1992
5. Clotting factors and hepatitis A;Temperly;Lancet,1992