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History
- Published online November 12, 2014.
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Copyright© the College of Family Physicians of Canada
Author Information
- Tongtong Yu, MD
- Tiesheng Niu, MD⇑
- Correspondence: Dr Tiesheng Niu, Department of Cardiology, Shengjing Hospital, China Medical University, Sanhao St No. 36, Heping District of Shenyang City, Shenyang 110004, China; e-mail niuts{at}sj-hospital.org