Article History
Received: 8 September 2020
Accepted: 9 November 2020
First Online: 16 November 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The use of clinical specimens for research purposes was approved by Ethics Committee of Xianyang Hospital of Yan’an University, and research procedures were performed in accordance with the Declaration of Helsinki. Animal studies were carried out with the approval of Ethics Committee of Xianyang Hospital of Yan’an University.
: Written informed consent was acquired from each patient.
: All authors have approved for the publication of this manuscript.
: Not applicable.