Syphilitic ulcers of the anus.
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HOLLINGS
D001003:Anal Canal; D001004:Anus Diseases; D001699:Biometry; D006801:Humans; D013587:Syphilis; D013591:Syphilis, Cutaneous / Q000706:statistics & numerical data*; D014456:Ulcer
ANUS/diseases; SYPHILIS, CUTANEOUS/statistics