Clinical phenotypes of 504 patients with pustular psoriasis from Europe and Egypt: a multicentre observational study. - Mostafa A; Arafa A; Gohary Y; Anzengruber F; El-Komy M; Abdel Hay R; Eid AA; Burri E; Capon F; Barker J; Maul JT; Navarini AA (Clinical and experimental dermatology, 2026)