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Article
May 19, 1993

Abstracts

JAMA. 1993;269(19):2471-2476. doi:10.1001/jama.1993.03500190013003

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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