TY - JOUR AU - Grunig, E; Lichtblau, M; Ehlken, N TI - Safety and efficacy of exercise training in various forms of pulmonary hypertension JO - The European respiratory journal VL - 40 PY - 2012 DO - 10.1183/09031936.00123711 L3 - PubMed-ID: 22323570 SP - 84 EP - 92 N1 - et al. ER -