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Beginning January 5, 2021, Rotation Prep will no longer be available as part of an individual or institutional subscription to NEJM or NEJM Journal Watch. Learn More

Explore this free Rotation Guide to see what Rotation Prep has to offer. Unlock all of Rotation Prep by linking your NEJM Resident 360 account to your personal or institutional subscription to NEJM Knowledge+.

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  • Ole-Petter Hamnvik, MB BCh BAO, MMSc's avatar
    Ole-Petter Hamnvik, MB BCh BAO, MMSc

    O.P. Hamnvik, MB BCh BAO, is an endocrinologist and educator at Brigham and Women’s Hospital and Harvard Medical School in Boston. He is also the NEJM Group Education Editor. 

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