VOLUNTARY BREATHHOLDING. I. PULMONARY GAS EXCHANGE DURING BREATHHOLDING

^{Department of Internal Medicine, University of Cincinnati, College of Medicine}

^{Department of Psychiatry, University of Cincinnati, College of Medicine}

The work described in this paper was done under a contract, recommended by the Committee on Medical Research, between the Office of Scientific Research and Development and the University of Cincinnati.

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^{Department of Internal Medicine, University of Cincinnati, College of Medicine}

^{Department of Psychiatry, University of Cincinnati, College of Medicine}

The work described in this paper was done under a contract, recommended by the Committee on Medical Research, between the Office of Scientific Research and Development and the University of Cincinnati.

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^{Department of Internal Medicine, University of Cincinnati, College of Medicine}

^{Department of Psychiatry, University of Cincinnati, College of Medicine}

The work described in this paper was done under a contract, recommended by the Committee on Medical Research, between the Office of Scientific Research and Development and the University of Cincinnati.

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^{Department of Internal Medicine, University of Cincinnati, College of Medicine}

^{Department of Psychiatry, University of Cincinnati, College of Medicine}

The work described in this paper was done under a contract, recommended by the Committee on Medical Research, between the Office of Scientific Research and Development and the University of Cincinnati.

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^{Department of Internal Medicine, University of Cincinnati, College of Medicine}

^{Department of Psychiatry, University of Cincinnati, College of Medicine}

The work described in this paper was done under a contract, recommended by the Committee on Medical Research, between the Office of Scientific Research and Development and the University of Cincinnati.

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