Melo-Cristino, J.; Fernandes, M. L.; Serrano, N. Antimicrobial Susceptibility of Streptococcus Pyogenes, Haemophilus Influenzae, Streptococcus Pneumoniae and Moraxella Catarrhalis from Community Acquired Respiratory Infections in 2000. Acta Med Port 2001, 14, 459-468.