David Garfield1, Jacques Cadranel2, Nicola Normanno3. 1. University of Colorado Health Sciences Center, Denver, Colorado, United States. Electronic address: david.garfield@earthlink.net. 2. Service de Pneumologie et Reanimation Respiratoire, UFR Saint-Antoine Universite Paris VI, Paris, France. 3. Cell Biololgy and Preclinical Models Unit INT-Fondazione Pascale, Naples, Italy.