- Correspondence to Dr YS Chang, Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, No. 291, Zhongzheng Road, Zhonghe District, New Taipei City 23561, Taiwan;
- Received October 28, 2013
- Revised January 26, 2014
- Accepted February 2, 2014
- First published February 14, 2014.
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