Fig. 1From: Vaginal pH measured in vivo: lactobacilli determine pH and lactic acid concentrationVaginal pH measured in vivo in 20 women with Nugent score 0–3, showing stability of recorded values over time. Dashed lines represent women whose cervicovaginal fluid (CVF) contained only L-lactic acid; solid lines represent women whose CVF contained both D- and L-lactic acidBack to article page