Figure. . . . Flowchart of testing of 1,883 men who have sex with men for Chlamydia trachomatis (CT) and lymphogranuloma venereum (LGV) by RNA- and DNA-based assays, Germany, December 1, 2009–December 31, 2010. Gray shading indicates samples positive for CT that were sent for L genotyping. Most participants provided >1 type of sample.