VIRUS 552,939 Virus hepatitis / Sheila Sherlock guest ed. - London [etc.] : W.B. Saunders Company LTD., January 1980. - VII, 228 s. s il., wykr. ; 24 cm. - (Clinics in Gastroenterology, ISSN 0300-5089 ; vol. 9, no. 1 )