Download the full article as a PDF Bell JA (1948). JAMA 137(12):1009-1016. [Select the PDF link in the article tool box in the upper right corner]
Joseph Asbury Bell (1904-1968)
JAMA for making a toll free link to the pdf of this article available (email to Iain Chalmers from Annette Flanagin, 29 August 2014).