About the Authors

Xiaojing Wan

Affiliation Department of Geriatrics, the Fourth Affiliated Hospital of Harbin Medical University, Harbin, China

Jia Meng

Affiliation Department of Geriatrics, the Second Affiliated Hospital of Harbin Medical University, Harbin, China

Yingnan Dai

Affiliation Department of Cardiology, the Fourth Affiliated Hospital of Harbin Medical University, Harbin, China

Yina Zhang

yinazhlu@163.com (YZ); qingmei0724@163.com (SY)

Affiliation Department of Geriatrics, the Second Affiliated Hospital of Harbin Medical University, Harbin, China

Shuang Yan

yinazhlu@163.com (YZ); qingmei0724@163.com (SY)

Affiliation Department of Endocrinology, the Fourth Affiliated Hospital of Harbin Medical University, Harbin, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XW YZ SY. Performed the experiments: XW JM YD. Analyzed the data: XW JM. Contributed reagents/materials/analysis tools: XW YZ. Wrote the paper: XW.