- Correspondence to Dr Jennifer Meddings, Department of Internal Medicine, University of Michigan Medical School, 2800 Plymouth Road, Building 16, Room 430 W, Ann Arbor, MI, 48019-2800, USA;
- Received 4 November 2015
- Revised 4 February 2016
- Accepted 29 February 2016
- Published online 24 May 2016.
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