SEROTYPES of Streptococcus pyogenes, their relative prevalence in England, Wales and Northern Ireland, 1952-53.
D004739:England; D009660:Northern Ireland; D015995:Prevalence; D065288:Serogroup; D013291:Streptococcus; D013297:Streptococcus pyogenes; D014852:Wales
STREPTOCOCCUS