L. Piñeiro, M. Unemo, and G. Cilla, “Absence of Swedish New Variant Chlamydia trachomatis (nvCT) and C. trachomatis Genotype Distribution in Gipuzkoa, Spain, 2009–2010”, Acta Derm Venereol, vol. 92, no. 2, pp. 185–186, Oct. 2011.