Humoral Response Against LL‐37 in Psoriatic Disease: Comment on the Article by Yuan et al. Issue 11 (18th September 2019) - De Santis, Maria; Isailovic, Natasa; Generali, Elena; Ceribelli, Angela; Altamore, Lorenzo; Real‐Fernandez, Feliciana; Papini, Anna Maria; Rovero, Paolo; Sabatino, Giuseppina; Selmi, Carlo