Does CPAP treat depressive symptoms in individuals with OSA? An analysis of two 12-week randomized sham CPAP-controlled trials - Mok, Y; Melehan, K L; Phillips, C L; Yee, B J; Miller, C; Grunstein, R R; Bartlett, D; Liu, P Y; Wong, K K; Hoyos, C M (Sleep Med, 2020)