Studies of antistreptolysin O titers.
D000989:Antistreptolysin; D001769:Blood; D006801:Humans; D012698:Serologic Tests; D013301:Streptolysins / Q000037:antagonists & inhibitors*
D013301:Streptolysins; D000989:Antistreptolysin
BLOOD; STREPTOLYSIN/antagonists