research Alopecia areata in a patient with psoriatic arthritis and Crohn's disease receiving etanercept 7 citations , April 2013 in “International Journal of Rheumatic Diseases” Etanercept improved arthritis and psoriasis but caused hair loss, which healed after switching to sulfasalazine.
research Autoimmune polyglandular syndrome type 4 – case report January 2019 in “Przegląd Dermatologiczny” Patients with one autoimmune disease should be checked for other autoimmune disorders.