“Efficacy of Ritlecitinib (PF-06651600) in Patients With Alopecia Totalis and Alopecia Universalis: Post Hoc Analysis of the ALLEGRO Phase 2b 3 Study”. SKIN The Journal of Cutaneous Medicine 6, no. 6 (November 16, 2022): s102. Accessed April 18, 2026. https://skin.dermsquared.com/skin/article/view/1861.