Papp, Kim A, Andrew Blauvelt, John Sullivan, and Et al. “Efficacy of Ixekizumab in Patients Previously Treated With IL-17 Inhibitors”. SKIN The Journal of Cutaneous Medicine 2 (December 17, 2018): S118. Accessed July 5, 2022. https://www.jofskin.org/index.php/skin/article/view/500.