Association between male circumcision and incidence of syphilis in men and women: a prospective study in HIV-1 serodiscordant heterosexual African couples oleh Jillian Pintye, MPH, Prof. Jared M Baeten, MD, Lisa E Manhart, PhD, Prof. Connie Celum, MD, Prof. Allan Ronald, MD, Nelly Mugo, MMed, Andrew Mujugira, MBChB, Prof. Craig Cohen, MD, Edwin Were, MMed, Elizabeth Bukusi, MMed, James Kiarie, MMed, Dr. Renee Heffron, PhD