Fig. 1From: Bacterial communities in penile skin, male urethra, and vaginas of heterosexual couples with and without bacterial vaginosisComparison of unweighted UniFrac distances between the microbiota of sexual partners and non-partners. a BV-couples and b normal-couples. The analyses were stratified by the circumcision status of the male partners and include penile skin and male urethral specimens as indicated. P values are from paired t testsBack to article page