Penicillin-resistant streptococci from the saliva.
D000293:Adolescent; D002648:Child; D006801:Humans; D009055:Mouth; D010403:Penicillin Resistance; D010406:Penicillins / Q000627:therapeutic use; D012213:Rheumatic Fever; D012463:Saliva / Q000378:metabolism*; D013291:Streptococcus / Q000302:isolation & purification
D010406:Penicillins