Trujillo S., H.; Robledo R., J.; Mejía M., G. I.; Realpe Q., T. In vitro” Cefprozil-Effectiveness Against Clinical Isolations of Streptococcus Pneumoniae, Haemophilus Influenzae, Staphylococcus Aureus, Streptococcus Pyogenes Y Moraxella Catarrhalis. Med UPB 2003, 22 (1), 59-64.