Cord-blood antistreptolysin-O level according to parity and social class as a possible index of familial streptococcal experience.
D000989:Antistreptolysin; D005260:Female; D005312:Fetal Blood; D006801:Humans; D010298:Parity; D012923:Social Class; D013290:Streptococcal Infections / Q000453:epidemiology*; D013291:Streptococcus; D013301:Streptolysins / Q000037:antagonists & inhibitors*; D014470:Umbilical Cord
D013301:Streptolysins; D000989:Antistreptolysin
STREPTOCOCCAL INFECTIONS/epidemiology; STREPTOLYSIN/antagonists; UMBILICAL CORD
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