[1] Univ Giessen, Lung Ctr, Pulm Hypertens Div, Univ Hosp Giessen,Med Clin 2 5, D-35392 Giessen, Germany
[2] Marburg GmbH, Giessen, Germany
[3] Columbia Univ, New York, NY USA
[4] Drexel Univ, Coll Med, Sect Heart Failure Transplantat & Pulm, Hypertens Program,Allegheny Gen Hosp, Pittsburgh, PA USA
[5] Johns Hopkins Univ, Div Cardiol, Baltimore, MD USA
[6] Univ S Alabama, Div Pulm & Crit Care Med, Mobile, AL 36688 USA
[7] Univ Hosp Giessen, Med Clin 4 & 5, D-35392 Giessen, Germany
[8] Univ Paris Sud, Hop Antoine Beclere, Serv Pneumol, Clamart, France
[9] Ottawa Hlth Res Inst, Ottawa, ON, Canada
[10] Univ Bologna, Lab Mol Biol & Stem Cell Engn, Natl Inst Biostruct & Biosyst, Inst Cardiol,S Orsola Malpighi Hosp, Bologna, Italy
[11] Univ Calif San Diego, Med Ctr, La Jolla, CA 92093 USA