Luo, Jin http://orcid.org/0000-0001-5451-9535
Ratcliffe, Alastair
Chahal, Jaswinder
Brennan, Richard
Lee, Raymond
Article History
Received: 26 February 2018
Accepted: 24 March 2018
First Online: 29 March 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study was approved under the procedures of the local Ethics Committee. All procedures were carried out in line with the Declaration of Helsinki.
: All participants gave written informed consent before participating in the study.