emm typing and validation of provisional M types for group A streptococci.
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Facklam R, et al. Among authors: beall b.
Emerg Infect Dis. 1999 Mar-Apr;5(2):247-53. doi: 10.3201/eid0502.990209.
Emerg Infect Dis. 1999.
PMID: 10221877
Free PMC article.