Cheung, Eddy Yu Yeung
Yu, Kevin Ka Ki
Kwan, Rachel Lai Chu
Ng, Carmen Ka Man
Chau, Rosanna Mei Wa
Cheing, Gladys Lai Ying http://orcid.org/0000-0001-7615-8590
Article History
Received: 19 July 2018
Accepted: 6 June 2019
First Online: 24 June 2019
Ethics approval and consent to participate
: The study protocol was approved by Research Ethics Committee (Kowloon Central/ Kowloon East), Hospital Authority on 6 December 2013, and Human Subjects Ethics Sub-committee, The Hong Kong Polytechnic University on 15 May 2013, with reference numbers KC/KC-13-0181/ER-2 and HSEARS20130510002 respectively. The study was registered in ExternalRef removed on 20 November 2013, with reference number NCT01989806.Written consent was signed by eligible participants prior to the entry of study.
: Not applicable.
: The authors declare that they have no competing interests.