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Method of Participation: In order to claim credit, participants must complete the following:

1 Read the activity

2 Complete the online CME Test & Evaluation. Participants must achieve a score of 80% on the CME Test. One retake is allowed.

Visit www.mayoclinicproceedings.org, select CME,& then select CME articles to locate this article online to access the online process. On successful

completion of the online test & evaluation, you can instantly download & print your certificate of credit