A cluster analysis of bacterial vaginosis-associated microflora and pelvic inflammatory disease.
Ness RB, Kip KE, Hillier SL, Soper DE, Stamm CA, Sweet RL, Rice P, Richter HE. A cluster analysis of bacterial vaginosis-associated microflora and pelvic inflammatory disease. Am J Epidemiol. 2005 Sep 15; 162(6):585-90.