Guo, Yongwei
Rokohl, Alexander C.
Schaub, Friederike
Hou, Xiaoyi
Liu, Jinhua
Ruan, Yue
Jia, Renbing
Koch, Konrad R.
Heindl, Ludwig M.
Funding for this research was provided by:
Universität zu Köln (2680148101)
China Scholarship Council (201708080141)
Article History
Received: 16 May 2019
Revised: 18 July 2019
Accepted: 22 July 2019
First Online: 12 August 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.