Stability of Mental Toughness, Sleep Disturbances, and Physical Activity in Patients With Multiple Sclerosis (MS)—A Longitudinal and Pilot Study Dena Sadeghi Bahmani, Leila Esmaeili, Vahid Shaygannejad, Markus Gerber, Juerg Kesselring, Undine E. Lang, Edith Holsboer-Trachsler, Serge Brand Read the full article ›