Li, Yan
Chien, Wai Tong
Bressington, Daniel
Article History
Received: 11 February 2019
Revised: 11 June 2019
Accepted: 18 June 2019
First Online: 28 June 2019
Change Date: 9 October 2020
Change Type: Correction
Change Details: An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Ethical approval was obtained through the Human Subjects Research Ethics Sub-committee of the Hong Kong Polytechnic University and two study hospitals (HASEARS20151219002). The authors certify that all applicable institutional and governmental regulations concerning the ethical use of human volunteers were followed during the course of this research.