003820000a22001570004500060000800000082001200008100002100020100002200041100002100063245001700084250000600101260004100107260000900148300000900157650005800166  a100  a576 DAV  aDavis, Bernard D  aDulbecca,  Renato  aEisen,  Herman N  aMicrobiology  a4  aPhiladelphia, J B Lippincott company  c1990  a1215  aMedical microbiology/ Immunology/ Molecular  genetics