1. Bacterial flora of the vagina: quantative study;Barlett;Rev Infect Dis,1984
2. The normal microflora of the vagina;Cook,1984
3. Vaginal flora in health and disease;Larsen;Clin Obstet Gynecol,1993
4. Prevention and control of nosocomial infections in obstetrics and gynecology;Mead,1993
5. Mechanisms of antibiotic resistance;Mayer,1990