[1] Hammersmith Hosp, London, England
[2] Univ Paris Sud, Hop Bicetre, Le Kremlin Bicetre, France
[3] Univ Bologna, Bologna, Italy
[4] Actel Pharmaceut Ltd, Allschwil, Switzerland
[5] Imperial Coll, Natl Heart & Lung Inst, London, England
[6] Hannover Med Sch, Hannover, Germany
[7] German Ctr Lung Res, Hannover, Germany
[8] Johns Hopkins Univ, Sch Med, Baltimore, MD USA
[9] Univ Michigan, Ann Arbor, MI 48109 USA
[10] UT Southwestern Med Ctr, Dallas, TX USA