Authors: M J Walter; M Castro; S J Kunselman; V M Chinchilli; M Reno; T P Ramkumar; P C Avila; H A Boushey; B T Ameredes; E R Bleecker; W J Calhoun; R M Cherniack; T J Craig; L C Denlinger; E Israel; J V Fahy; N N Jarjour; M Kraft; S C Lazarus; R F Lemanske; R J Martin; S P Peters; J W Ramsdell; C A Sorkness; E R Sutherland; S J Szefler; S I Wasserman; M E Wechsler Journal: Eur Respir J Date: 2008-09-03 Impact factor: 16.671