Liu, Pei
You, Jieshu
Loo, Wing T. Y.
Sun, Youzhi
He, Yanhua
Sit, Huiping
Jia, Lei
Wong, Meikuen
Xia, Zhiyu
Zheng, Xiao
Wang, Zhiyu
Wang, Neng
Lao, Lixing
Chen, Jianping
Article History
Accepted: 8 April 2017
First Online: 18 April 2017
Change Date: 16 October 2020
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1007/s11136-020-02672-6
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study was approved by the Institutional Review Board of the University of Hong Kong/Hospital Authority Hong Kong West Cluster (HKU/HA HKW IRB, UW 12-046). All procedures performed in the study were in accordance with the ethical standards of HKU and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.