Yang, Guang
Wang, Jing
Sun, Jie
Zha, Xiaoming
Wang, Ningning
Xing, Changying http://orcid.org/0000-0002-9006-3739
Article History
Received: 4 October 2018
Accepted: 8 January 2019
First Online: 16 January 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The current study has been approved by the Ethics Committee of the First Affiliated Hospital of Nanjing Medical University (Nanjing, China) and has been performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.