Xiao, Yibin
Zhang, Bo
Wu, Yulian
Article History
Received: 20 June 2018
Accepted: 9 July 2018
First Online: 30 July 2018
Compliance with ethical standards
:
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This study was reviewed and approved by the ethical committee of the Second Affiliated Hospital, School of Medicine, Zhejiang University. All patients were followed up by phone call or SMS and explained clearly that data collected will be intended for publication. All methods were performed in accordance with the relevant guidelines and regulations.
: The authors declare that they have no conflict of interest.