Within-person fluctuations over three years in depression, anxiety, fatigue, and health-related quality of life in multiple sclerosis. - Marrie RA; Bernstein CN; Dolovich C; Bolton JM; Graff LA; Hitchon CA; Lix LM; Marriott JJ; Fisk JD (Multiple sclerosis (Houndmills, Basingstoke, England), 2023)