THE EFFICIENCY OF VENTILATION DURING VOLUNTARY HYPERPNEA: STUDIES IN NORMAL SUBJECTS AND IN DYSPNEIC PATIENTS WITH EITHER CHRONIC PULMONARY EMPHYSEMA OR OBESITY

^{Department of Medicine, Columbia University, College of Physicians and Surgeons, New York, N. Y.}

^{Cardio-Pulmonary Laboratory of the First Medical and Chest Services, Columbia University Division, Bellevue Hospital, New York, N. Y.}

This investigation was supported by a research grant (Public Health Service) (Grant H-2001 C) from the National Heart Institute, National Institutes of Health.

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^{Department of Medicine, Columbia University, College of Physicians and Surgeons, New York, N. Y.}

^{Cardio-Pulmonary Laboratory of the First Medical and Chest Services, Columbia University Division, Bellevue Hospital, New York, N. Y.}

This investigation was supported by a research grant (Public Health Service) (Grant H-2001 C) from the National Heart Institute, National Institutes of Health.

Find articles by Filler, J. in: JCI | PubMed | Google Scholar

^{Department of Medicine, Columbia University, College of Physicians and Surgeons, New York, N. Y.}

^{Cardio-Pulmonary Laboratory of the First Medical and Chest Services, Columbia University Division, Bellevue Hospital, New York, N. Y.}

This investigation was supported by a research grant (Public Health Service) (Grant H-2001 C) from the National Heart Institute, National Institutes of Health.

Find articles by Fishman, A. in: JCI | PubMed | Google Scholar

^{Department of Medicine, Columbia University, College of Physicians and Surgeons, New York, N. Y.}

^{Cardio-Pulmonary Laboratory of the First Medical and Chest Services, Columbia University Division, Bellevue Hospital, New York, N. Y.}

This investigation was supported by a research grant (Public Health Service) (Grant H-2001 C) from the National Heart Institute, National Institutes of Health.

Find articles by Cournand, A. in: JCI | PubMed | Google Scholar