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A acute pharyngitis B bacteriologic C coblation tonsillectomy cold knife P penicillin v pharyngitides acute pharyngitis streptococcal pharyngitis pharyngotonsillitis pristinamycin R recurrent tonsillitis S strep throat streptococcal pharyngitis streptococcus pyogenes T tonsillectomies coblation tonsillectomy tonsillitides recurrent tonsillitis