β-LACTAMASE PRODUCTION RATIO OF CLINICAL ISOLATES AND CLINICAL EFFECT OF SULBACTAM ·AMPICILLIN (SET·ABPC) IN RESPIRATORY TRACT INFECTIONS - KANEHARA, HISASHI; IKEHATA, TAKASHI; OHYA, NOBUO; HAYASE, MITSURU; YAMAZAKI, MICHIKO (CHEMOTHERAPY, 1988)
Keywords: B.catarrhalis; β-lactamase