Gottlieb, A., D. Thaci, C. Leonardi, Y. Poulin, S. Kavanagh, M. Boehnlein, and K. Reich. “Nail Outcome Improvements With Certolizumab Pegol in Moderate to Severe Plaque Psoriasis: Results from Phase 3 Trials”. SKIN The Journal of Cutaneous Medicine, vol. 3, Nov. 2019, p. S38, doi:10.25251/skin.3.supp.38.