BONINO F.A. [red.] 312,890 GENETIC Genetic heterogeneity of hepatitis viruses : clinical implications Sestriere- 5-7 April 1991 / guest ed-s : F.A. Bonino [et al.]. - Amsterdam [etc.] : Elsevier Science Publ. B.V., 1991. - [6], 172 s. : il., wykr.; 29 cm (Journal of Hepatology, ISSN 0168-8278 ; vol. 13, suppl. A)