Endurance exercise training in orthostatic intolerance: a randomized, controlled trial - Winker, R; Barth, A; Bidmon, D; Ponocny, I; Weber, M; Mayr, O; Robertson, D; Diedrich, A; Maier, R; Pilger, A; Haber, P; Rudiger, H W (Hypertension, 2005)