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Article
August 7, 1991

Abstracts

JAMA. 1991;266(5):643-647. doi:10.1001/jama.1991.03470050043006

Edited by Jeanette M. Smith, MD, Contributing Editor.

Abstracts are selected on the basis of interest to our readers. Publication herein does not suggest an endorsement of content or a validation of conclusions.

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