Volume 70 Number 4 September 2003	back to contents

*From the radiologic and urologic services of The Mount Sinai Hospital.

*The original article is abbreviated in The Journal by the omission of six illustrations. This version has all 12 figures, as
depicted in the author’s reprints.

*Read before the Section on Radiology at the Eighty-First Annual Session of the American Medical Association, Detroit,
June 26, 1930.

Reprinted from JAMA 1930; 95:1409 – 1412, copyright 1930, with permission from the American Medical Association.

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