Opportunistic testing for urogenital infection with Chlamydia trachomatis in south-western Switzerland, 2012: a feasibility study Bally, F and Quach, A and Greub, G and Jaton, K and Petignat, C and Ambord, C and Fellay, J and Masserey, E and Spencer, B, Eurosurveillance, 20, 21051 (2015), https://doi.org/10.2807/1560-7917.ES2015.20.9.21051