Prevalence of the new genetic variant of Chlamydia trachomatis in Södra Älvsborg County, Västra Götaland Region, Sweden Björkman, J and Jonsson, L and Nilsson, P, Weekly releases (1997–2007), 12, 3219 (2007), https://doi.org/10.2807/esw.12.24.03219-en