1. Failure of penicillin to eradicate group A streptococci during an outbreak of pharyngitis;Gastanaduy;Lancet,1980
2. Aerobic and anaerobic bacteria in tonsils of children with recurrent tonsillitis;Brook;Ann Otol Rhinol Laryngol,1981
3. Staphylococcal antagonism to penicillin group therapy of hemolytic streptococcal pharyngeal infection: effect of oxacillin;Simon;Pediatrics,1968
4. Wadsworth Anaerobic Bacteriology Manual;Sutter,1980
5. Anaerobic Laboratory Manual;Holdeman,1977