You, Dong
Wang, Dawei
Liu, Peiji
Chu, Yuning
Zhang, Xueying
Ding, Xueli
Li, Xiaoyu
Mao, Tao
Jing, Xue
Tian, Zibin http://orcid.org/0000-0002-4622-2114
Pan, Yinghua
Article History
Received: 23 April 2019
Accepted: 10 December 2019
First Online: 13 February 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interests.
: This study was approved by the Institutional Ethics Committee of The Affiliated Hospital of Qingdao University (Qingdao, China) and was performed according to the guidelines of the Declaration of Helsinki. Informed consent was obtained from all patients.