Pain invalidation is an independent determinant of fibromyalgia, irrespective of depression. - Ghavidel-Parsa, Banafsheh; Taskoh, Milad Kazemi; Leili, Ehsan Kazemnezhad; Bidari, Ali; Abazari, Nader; Masooleh, Irandokht Shenavar (Korean Journal of Pain, 2025)