About the Authors

Min-Li Chen

Affiliation Department of Geriatrics and Gerontology, First Affiliated Hospital, Guangxi Medical University, Nanning, China

Ning Liao

Affiliation Department of Geriatrics and Gerontology, First Affiliated Hospital, Guangxi Medical University, Nanning, China

Hua Zhao

Affiliation Department of Geriatrics and Gerontology, First Affiliated Hospital, Guangxi Medical University, Nanning, China

Jian Huang

Affiliation Department of Clinical Medicine, Grade 2001, Guangxi Medical University, Nanning, China

Zheng-Fu Xie

xiezhengfu@gxmu.edu.cn

Affiliation Department of Geriatrics and Gerontology, First Affiliated Hospital, Guangxi Medical University, Nanning, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JH ZFX. Performed the experiments: MLC NL HZ JH ZFX. Analyzed the data: MLC NL HZ JH ZFX. Contributed reagents/materials/analysis tools: MLC NL HZ JH ZFX. Wrote the paper: MLC NL HZ JH ZFX. Discussion: MLC NL HZ JH ZFX.