Penicillin VPenicillinsPenicillin AmidasePenicillin GPharyngitisTonsillitisPenicillin ResistancePenicillium chrysogenumAnti-Bacterial AgentsStreptococcal InfectionsPenicillin G ProcaineCefuroximeAdenoidsPenicillin G BenzathineCephalosporinsStreptococcus sanguisRheumatic FeverMicrobial Sensitivity TestsStreptococcus pyogenesAmidohydrolases