Piñeiro, L., M. Unemo, and G. Cilla. “Absence of Swedish New Variant Chlamydia Trachomatis (nvCT) and C. Trachomatis Genotype Distribution in Gipuzkoa, Spain, 2009–2010”. Acta Dermato-Venereologica, vol. 92, no. 2, Oct. 2011, pp. 185-6, doi:10.2340/00015555-1234.