TY - BOOK ED - World Health Organization TI - Viral hepatitis : report of a WHO meeting T2 - World Health Organization technical report series ; no. 570 SN - 9241205709 U1 - 100 SD:610.621 PY - 1975/// CY - Geneva PB - World Health Organization KW - Hepatitis A KW - Hepatitis B Antigens KW - Hepatitis, Viral, Human ER -