Zhang, Tao
Liu, Yahong
Ren, Xuan
Wang, Zhuanping
Wang, Hongjuan
Funding for this research was provided by:
Health Industry Research Management Project of Gansu Province (GWGL2014-18)
Article History
Accepted: 24 February 2020
First Online: 12 March 2020
Compliance with ethical standards
:
: On behalf of all authors, the corresponding author states that there is no conflict of interest.
: This study was approved by the ethics committee of Lanzhou University Second Hospital, and written informed consent was obtained from the patients or their guardians before sample collection.