About the Authors

Ruiyue Yang

Affiliation The Key Laboratory of Geriatrics, Beijing Hospital and Beijing Institute of Geriatrics, Ministry of Health, Beijing, China

Jun Dong

Affiliation The Key Laboratory of Geriatrics, Beijing Hospital and Beijing Institute of Geriatrics, Ministry of Health, Beijing, China

Hanbang Guo

Affiliation The Key Laboratory of Geriatrics, Beijing Hospital and Beijing Institute of Geriatrics, Ministry of Health, Beijing, China

Hongxia Li

Affiliation The Key Laboratory of Geriatrics, Beijing Hospital and Beijing Institute of Geriatrics, Ministry of Health, Beijing, China

Shu Wang

Affiliation The Key Laboratory of Geriatrics, Beijing Hospital and Beijing Institute of Geriatrics, Ministry of Health, Beijing, China

Haijian Zhao

Affiliation Beijing Hospital and National Center for Clinical Laboratories, Ministry of Health, Beijing, China

Weiyan Zhou

Affiliation Beijing Hospital and National Center for Clinical Laboratories, Ministry of Health, Beijing, China

Songlin Yu

Affiliation Beijing Hospital and National Center for Clinical Laboratories, Ministry of Health, Beijing, China

Mo Wang

Affiliation The Key Laboratory of Geriatrics, Beijing Hospital and Beijing Institute of Geriatrics, Ministry of Health, Beijing, China

Wenxiang Chen

wchen@bjhmoh.cn

Affiliations The Key Laboratory of Geriatrics, Beijing Hospital and Beijing Institute of Geriatrics, Ministry of Health, Beijing, China, Beijing Hospital and National Center for Clinical Laboratories, Ministry of Health, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RY JD WC. Performed the experiments: RY JD HG HL SW HZ WZ SY MW. Analyzed the data: RY JD WC. Contributed reagents/materials/analysis tools: RY JD HG HL SW HZ WZ SY MW. Wrote the paper: RY JD WC. Reviewed manuscript and made suggestions: HG HL SW HZ WZ SY MW.