Ekman, Anna-Karin, et al. “Systemically Elevated Th1-, Th2- and Th17-Associated Chemokines in Psoriasis Vulgaris Before and After Ultraviolet B Treatment”. Acta Dermato-Venereologica, vol. 93, no. 5, Apr. 2013, pp. 527-31, doi:10.2340/00015555-1545.