- Correspondence to Dr Armin Alaedini, Department of Medicine, Columbia University Medical Center, 1130 Saint Nicholas Ave., Room 937; New York, NY 10032, USA;
- Received 31 March 2016
- Revised 9 June 2016
- Accepted 20 June 2016
- Published in print 21 July 2016.
- Published online 25 July 2016.
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