Nantaporn Thammata. (2000) Validity of a risk assessment form for screening hepatitis C virus infection and HBsAg positive carrier in blood donors. Mahidol University,:ม.ป.ท.Nantaporn Thammata. 2000. Validity of a risk assessment form for screening hepatitis C virus infection and HBsAg positive carrier in blood donors. ม.ป.ท.:Mahidol University,;Nantaporn Thammata. Validity of a risk assessment form for screening hepatitis C virus infection and HBsAg positive carrier in blood donors. ม.ป.ท.:Mahidol University, 2000. Print.