Penicillin VPenicillinsPenicillin AmidasePenicillin GPharyngitisTonsillitisPenicillin ResistancePenicillium chrysogenumStreptococcal InfectionsPenicillin G ProcaineCefuroximeAnti-Bacterial AgentsAdenoidsPenicillin G BenzathineStreptococcus sanguisRheumatic FeverCephalosporinsStreptococcus pyogenesAmidohydrolases