Fig. 3From: Vaginal pH measured in vivo: lactobacilli determine pH and lactic acid concentrationIn 20 women with Nugent score 0–3, the vaginal pH measured in vivo correlates very tightly (r2 = 0.97) with the lactate concentration of the ex vivo CVF. Open circles represent women whose CVF contained only L-lactic acid; filled circles represent women whose CVF contained both D- and L-lactic acidBack to article page