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Authors
Lee, Leung-Pong
Har, Afifah Wing-Yiu
Ngai, Chun-Hei
Lai, Daniel W. L.
Lam, Bess Yin-Hung https://orcid.org/0000-0002-2778-3469
Chan, Chetwyn Che-Hin
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Article History
Received: 2 July 2019
Accepted: 6 February 2020
First Online: 17 February 2020
Ethics approval and consent to participate
: All participants gave written informed consent to the study and scientific use of the data. The study was approved by the ethics committee of the Hong Kong Polytechnic University (Reference no.:HSEARS20180110001–01).
: Not applicable.
: DWL Lai is one of the associate editors of BMC Geriatrics. The authors declare that they have no other competing interests.
