Gu, Ting
Lu, Ying-li
Han, Bing
Jiang, Bo-Ren
Wang, Li-Zhen
Yang, Li-Zhen http://orcid.org/0000-0001-6473-8088
Han, Yong-Shun
Article History
Received: 19 June 2018
Accepted: 3 September 2018
First Online: 10 September 2018
Compliance with ethical standards
:
: All authors declare that they have no conflict of interest.
: All procedures performed in present study 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 was a retrospective study and was approved by the Ethics Committee of Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine. The Ethics Committee approved that formal written consents from patients were not required, because it was a retrospective study.