- Correspondence to Dr Han-Mo Chiu, Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan, No.7, Chung-Shan South Road, Taipei 100, Taiwan;
- Received 29 June 2015
- Revised 4 October 2015
- Accepted 11 October 2015
- Published in print 1 February 2017.
- Published online 6 January 2017.
- Published first 29 October 2015.
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- Data supplement 1 - Online supplement
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