Human immunodeficiency virus, hepatitis B virus, hepatitis C virus, and syphilis co-infections among patients with anogenital warts in Tabriz, Iran oleh Sara Saniee, Hamideh Herizchi Qadim, Mohammadreza Ranjkesh, Niloofar Afshari, Ghazaleh Davarnia, Elham Nahchami, Davood Ahmadi Maleki, Neda Razaghi, Sahar Ebrahimi, Asal Sadri, Leila Hatamnejad, Mir Ahad Mousavi