Qian, Chen
Wu, Shan
Chen, Hongmei
Zhang, Xiaofen
Jing, Rongrong
Shen, Lei
Wang, Xudong
Ju, Shaoqing
Jia, Chunping
Cong, Hui http://orcid.org/0000-0002-3660-4557
Article History
Received: 14 August 2017
Accepted: 3 January 2018
First Online: 14 February 2018
Compliance with ethical standards
:
: We have declared that no competing interests exist. The authors alone are responsible for the content and writing of the paper.
: The study complies with the Declaration of Helsinki and was approved by the Ethics Committee of Affiliated Hospital of Nantong University, and all patients gave written informed consent.
: Informed consent was obtained from each patient involved in this study.