Funding for this research was provided by:
National Natural Science Foundation of China (81501099, 81772448, 81861138008)
the National Key R&D Program of China (2017YFC1310100)
the Key R&D Program of Shandong Province (2016ZDJS07A11)
Text and Data Mining valid from 2019-03-27
Received: 19 September 2018
Accepted: 8 March 2019
First Online: 27 March 2019
Compliance with ethical standards
: The authors have no conflicts of interest to declare.
: This study was approved by the Ethics Committee of Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong. Research has been conducted in accordance with the declaration of Helsinki and its later amendments.
: This article does not contain any studies with animals performed by any of the authors.
: Written informed consent was obtained from all the participants of this study.