Kong, Xianglei
Ma, Xiaojing
Zhang, Chengyin
Su, Hong
Gong, Xiaojie
Xu, Dongmei http://orcid.org/0000-0002-1644-1092
Funding for this research was provided by:
Clinical Medicine Innovation Program of the Science and Technology Development Programs from the Ji’nan Science and Technology Bureau (201704086)
Projects of Medical and Health Technology Development Program of Shandong Province (2017WS083)
Article History
Received: 21 December 2017
Accepted: 23 April 2018
First Online: 4 May 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study was conducted in accordance with the Declaration of Helsinki, and also under the approval of the Ethics Committee of Qianfoshan Hospital, Shandong University (No. 2016s001, February 16, 2016).