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Since this article does not have an abstract, we have provided the first 76 words of the full text and any section headings.
CME from JAMA/Archives Journals will be suspended between Julyand December 2002. Beginning in early 2003, we will offer anew online CME program that will provide many enhancements:
Article-specific questions
Hypertext links from questionsto the relevant content
Online CME questionnaire
PrintableCME certificates and ability to access total CME credits
We apologize for the interruption in CME and hope that you willenjoy the improved online features that will be available inearly 2003.