Prevalence of Ampicillin- and Chloramphenicol-Resistant Strains of Haemophilus influenzae Causing Meningitis and Bacteremia: National Survey of Hospital Laboratories

Abstract
Joel I. Ward, Theodore F. Tsai, Gregory A. Filice, David W. Fraser; Prevalence of Ampicillin- and Chloramphenicol-Resistant Strains of Haemophilus influenzae C