Cima K, Twiss J, Speich R, McKenna SP, Grunig E, Kahler CM, Ehlken N, Treder U, Crawford SR, Huber LC, Ulrich S. The German adaptation of the Cambridge pulmonary hypertension outcome review (CAMPHOR). Health Qual Life Outcomes. 2012 Sep 13;10:110. doi: 10.1186/1477-7525-10-110