WEN YU-MEI VIRAL 551,826 Viral hepatitis in China : problems and control strategies / vol. eds. Yu-Mei Wen, Zhi-Yi Xu, Joseph L. Melnick. - Basel [etc.] : Karger, [1992]. - IX, 159 s. : il, wykr. ; 24 cm (Monographs in Virology ; vol. 19) ISBN 3-8055-5364-1