Using PCR-based detection and genotyping to trace Streptococcus salivarius meningitis outbreak strain to oral flora of radiology physician assistant. - Srinivasan V; Gertz RE Jr; Shewmaker PL; Patrick S; Chitnis AS; O'Connell H; Benowitz I; Patel P; Guh AY; Noble-Wang J; Turabelidze G; Beall B (PloS one, 2012)