“…For example, this ranges from a relatively high chance of spontaneous hair regrowth in non-atopic patients whose first hair loss episode occurred after puberty and without associated nail dystrophy or family history for AA and other autoimmune diseases, to a poor prognosis for spontaneous disease remission in pre-pubertal atopic patients with a family history for AA or other autoimmune diseases (Gilhar et al, 2012;Strazzulla et al, 2018). In addition, we still lack a satisfactory mechanistic explanation why exactly AA lesion topography (e.g., the presence of ophiasis or nail involvement) are reliable prognostic markers (Lee et al, 2019;Roest et al, 2018), and why various comorbidities (Lee et al, 2019a(Lee et al, , 2019b) such as Down Syndrome and lupus erythematosus are associated with a negative prognosis.…”