The prevalence of hepatitis B surface antigen in commercially prepared plasma products.Hoofnagle Jh, Barker Lf, John F. Thiel et al.|PubMed|1976Cited by 43
Hepatitis B Virus and Hepatitis B Surface Antigen in Human Albumin ProductsHoofnagle Jh, R. J. Gerety, L. F. Barker et al.|Transfusion|1976Cited by 13