About the Authors

Qiong Ou

Affiliation Sleep Center, Department of Respiratory Medicine, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Institute of Geriatrics, Guangzhou, Guangdong, People’s Republic of China

Yong-Chi Chen

Affiliation Department of Cardiology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Institute of Geriatrics, Guangzhou, Guangdong, People’s Republic of China

Sheng-Qing Zhuo

Affiliation Department of Cardiology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Institute of Geriatrics, Guangzhou, Guangdong, People’s Republic of China

Xiang-Ting Tian

Affiliation Department of Cardiology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Institute of Geriatrics, Guangzhou, Guangdong, People’s Republic of China

Chun-Huan He

Affiliation Department of Cardiology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Institute of Geriatrics, Guangzhou, Guangdong, People’s Republic of China

Xi-Lin Lu

Affiliation Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, People’s Republic of China

Xing-Lin Gao

xinglingao@hotmail.com

Affiliation Sleep Center, Department of Respiratory Medicine, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Institute of Geriatrics, Guangzhou, Guangdong, People’s Republic of China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: QO XLG. Performed the experiments: QO YCC SQZ XTT CHH XLL. Analyzed the data: QO XLL XLG. Contributed reagents/materials/analysis tools: QO YCC SQZ XTT CHH. Wrote the paper: QO XLL XLG.