Programmatic mapping and size estimation of female sex workers, transgender sex workers and men who have sex with men in İstanbul and Ankara, Turkey http://orcid.org/0000-0003-0704-2302Deniz Gokengin1,2, Georgetta Aybek2, Sevgi O Aral3, James Blanchard4, Demir Serter2, http://orcid.org/0000-0002-7901-0257Faran Emmanuel4 1 Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Ege University, Izmir, Turkey 2 AIDS and Sexually Transmitted Diseases Society, Izmir, Turkey 3 Division...