Oxygen saturation >= 92% on room air Excluded if known active pulmonary disease with hypoxia defined as: \r\n* Oxygen saturation < 85% on room air, or\r\n* Oxygen saturation < 88% despite supplemental oxygen Obtained within 14 days prior to C1D1: Oxygen saturation (O2 Sat.) >= 92% on ambient air Baseline oxygen saturation > 92% on room air RETREATMENT WITH MODIFIED T-CELLS INCLUSION CRITERIA: Oxygen saturation 90% or higher on room air Must have an ambulatory oxygen saturation of > 90% on room air Baseline oxygen saturation > 92% on room air Patients who have any clinical evidence of hypoxia with O2 saturation less than 92% on room air. Baseline oxygen saturation > 92% on room air Common Terminology Criteria for Adverse Events (CTCAE) grade =< 1 dyspnea and oxygen saturation (SaO2) >= 92% on room air Oxygen saturation >= 90% on room air No clinically significant pleural effusion, baseline oxygen saturation > 92% on room air Room air oxygen saturation of 92% or greater Baseline oxygen saturation > 92% on room air The patient has adequate pulmonary function per protocol and oxygen saturation >92% on room air. For patients < 8 years of age unable to perform pulmonary function tests (PFTs) due to age or developmental ability: (1) no evidence of dyspnea at rest and (2) no need for supplemental oxygen and (3) oxygen (O2) saturation > 92% on room air Must have an ambulatory oxygen saturation of > 88% on room air Must have an ambulatory oxygen saturation of > 90% on room air Room air oxygen saturation of 92% or greater Baseline oxygen saturation > 92% on room air and no clinically significant pleural effusion RETREATMENT WITH MODIFIED T CELLS: Oxygen saturation 90% or higher on room air Oxygen saturation >= 90% on room air Normal lung function as manifested by no dyspnea and/or oxygen saturation >= 94% on room air Oxygen saturation >= 90% on room air, measured prior to treatment No clinically significant pleural effusion, baseline oxygen saturation > 92% on room air No clinically significant pleural effusion, baseline oxygen saturation > 92% on room air. Oxygen saturation (Sp02) of less than 95% on room air Within 30 days of registration: Oxygen saturation >= 90% on room air Oxygen saturation >= 92% on room air O2 saturation < 92% (on room air). Oxygen saturation >= 90% on room air Baseline oxygen saturation > 92% on room air Resting and ambulatory oxygen saturation >= 94% on room air For pediatric patients unable to perform pulmonary function tests, oxygen (O2) saturation > 92% on room air Individuals with active lung disease as defined by presence of pulmonary infiltrates on screening chest x-ray or baseline room air oxygen saturation of < 92% Oxygen saturation >= 95% on room air Oxygen saturation >= 90% on room air Significant lung disease (oxygen [O2] saturation less than 88% in room air) Hypoxia (oxygen saturation < 90% on room air) or in the opinion of the investigator any pulmonary compromise leading to hypoxia, at the time of study entry Oxygen saturation of greater than or equal to 90% on room air Baseline oxygen saturation >92% on room air Oxygen saturation (Sp02) of less than 95% on room air. O2 saturation < 92% (on room air), evidence of TLS > grade 2 (according to the Cairo-Bishop criteria (3)) or leukostasis (2). If unable to perform pulmonary function tests due to young age, oxygen saturation > 92% on room air Oxygen saturation >= 90% on room air Room air oxygen saturation of > 94% Non-hypoxemic (i.e. oxygen saturation > 90% on ambient air) Oxygen saturation > 90% on ambient air at time of assessment Room air desaturation at rest =< 85% Room air desaturation at rest =< 85% Adequate pulmonary function defined as:\r\n* Room air oxygen saturation of > 90% at altitude > 5000 feet, or > 93% < 5000 feet Oxygen saturation during exertion is maintained at >= 88% on room air Oxygen saturation below 92% on room air Adequate respiratory function with a room air oxygen saturation of at least 92% Room air desaturation at rest =< 85% Oxygen saturation >= 90% on room air Known severely impaired lung function (spirometry and DLCO 50% or less of normal and O2 saturation 88% or less at rest on room air) Baseline oxygen saturation > 92% on room air Oxygen saturation < 90% on room air