About the Authors

Hao Sun

Affiliation Department of Clinical Epidemiology, Institute of Cardiovascular Diseases and Center of Evidence Based Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China

Jingpu Shi

jingpushi56@yahoo.com

Affiliation Department of Clinical Epidemiology, Institute of Cardiovascular Diseases and Center of Evidence Based Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China

Min Li

Affiliation Department of Clinical Epidemiology, Institute of Cardiovascular Diseases and Center of Evidence Based Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China

Xin Chen

Affiliation Department of Clinical Epidemiology, Institute of Cardiovascular Diseases and Center of Evidence Based Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Provided support of methodology and statistics: JPS. Conceived and designed the experiments: HS. Performed the experiments: HS ML XC. Analyzed the data: HS. Contributed reagents/materials/analysis tools: HS ML XC. Wrote the paper: HS.