Prevalence of Neisseria gonorrhoeae and Chlamydia trachomatis in men having sex with men in Port-au-Prince, Haiti: a cross-sectional study oleh Frantz Jean Louis, Josiane Buteau, Jacques Boncy, Jean Wysler Domercant, Guethina Galbaud, Maureen Leonard, Emmanuel Pericles, Ito Journel, Regine Jean Francois