TY - JOUR T1 - Primary syphilitic proctitis associated with human immunodeficiency virus infection in a male patient who had sex with men: a case report A1 - Chen,Wen-Ying A1 - Wang,Jia JO - Journal of Men's Health VL - 18 IS - 2 SP - 1 EP - 4 SN - 1875-6859 Y1 - 2022 ER -