1. Department of Psychological Medicine; Yong Loo Lin School of Medicine; National University of Singapore; Singapore City Singapore
2. Department of Psychological Medicine; National University Health System; Singapore
3. Department of Neurology; Jining First People's Hospital; Shandong China
4. Yankuang Group; Xing Long Zhuang Coal Mine Hospital; Jining China
5. School of Public Health; Jining Medical University; Shandong China
6. Aging Research Center; Karolinska Institutet-Stockholm University; Stockholm Sweden