 - Patients greater than or equal to 18 years; ECOG performance status of 0-2, without evidence of unstable or decompensated myocardial disease; must have adequate pulmonary reserve evidenced by post-operative FEV1 and DLCO Bullet 40 predicted; pCO2 50 mm Hg and pO2 60 mm Hg on room air ABG; and be on no immunosuppressive medications except non-systemic corticosteroids. 