TY - BOOK AU - Pumper,Robert William AU - Yamashiroya,Herbert M. TI - Essentials of medical virology PY - 1975/// CY - Philadelphia PB - Saunders KW - Virus Diseases KW - Local KW - Viruses KW - Pathogenicity KW - Medical virology N1 - Includes index; Bibliography: p. 227-238 ER -