Diagnostic yield of real-time polymerase chain reaction in the diagnosis of intrapartum maternal rectovaginal colonization by group B Streptococcus: a systematic review with meta-analysis - Feuerschuette, O HM; Silveira, S K; Cancelier, A CL; da Silva, R M; Trevisol, D J; Pereira, J R (Diagn Microbiol Infect Dis, 2018)