INTUBATION STUDIES OF THE HUMAN SMALL INTESTINE. IV. CHEMICAL CHARACTERISTICS OF THE INTESTINAL CONTENTS IN THE FASTING STATE AND AS INFLUENCED BY THE ADMINISTRATION OF ACIDS, OF ALKALIES AND OF WATER

^{Gastro-Intestinal Section of the Medical Clinic, Hospital of the University of Pennsylvania, Philadelphia}

Aided by a donation from Mr. Samuel S. Fels and by grants from the Faculty Research Committee and from Smith, Kline and French Laboratories.

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^{Gastro-Intestinal Section of the Medical Clinic, Hospital of the University of Pennsylvania, Philadelphia}

Aided by a donation from Mr. Samuel S. Fels and by grants from the Faculty Research Committee and from Smith, Kline and French Laboratories.

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^{Gastro-Intestinal Section of the Medical Clinic, Hospital of the University of Pennsylvania, Philadelphia}

Aided by a donation from Mr. Samuel S. Fels and by grants from the Faculty Research Committee and from Smith, Kline and French Laboratories.

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