Multiple primary syphilis on the lip, nipple-areola and penis: An immunohistochemical examination of Treponema pallidum localization using an anti-T. pallidum antibody.
Fukuda H, Takahashi M, Kato K, Oharaseki T, Mukai H.
J Dermatol. 2015 May;42(5):515-7. doi: 10.1111/1346-8138.12818. Epub 2015 Feb 24.