1. Department of Medicine; University of Hong Kong; Hong Kong SAR China
2. Department of Medicine and Therapeutics; Chinese University of Hong Kong; Hong Kong SAR China
3. Department of Medicine and Geriatrics; Tuen Mun Hospital; Kowloon Hong Kong SAR China
4. Department of Medicine and Geriatrics; United Christian Hospital; Kowloon Hong Kong SAR China
5. Department of Medicine and Geriatrics; Princess Margaret Hospital; Kowloon Hong Kong SAR China
6. Department of Medicine; Pamela Youde Nethersole Eastern Hospital; Hong Kong SAR China
7. Department of Medicine; Tseung Kwan O Hospital; Hong Kong SAR China
8. Department of Medicine; North District Hospital; New Territorities Hong Kong SAR China
9. Department of Medicine; Queen Elizabeth Hospital; Kowloon Hong Kong SAR China
10. Department of Medicine and Geriatrics; Caritas Medical Centre; Kowloon Hong Kong SAR China
11. Department of Medicine and Geriatrics; Kwong Wah Hospital; Kowloon Hong Kong SAR China
12. Department of Medicine; Alice Ho Miu Ling Nethersole Hospital; New Territorities Hong Kong SAR China