Zhang, W.
Feng, Y.-L.
Pang, C.-Y.
Lu, F.-A.
Wang, Y.-F.
Article History
First Online: 8 May 2018
Compliance with ethical guidelines
:
: W. Zhang, Y.-L. Feng, C.-Y. Pang, F.-A. Lu, and Y.-F. Wang declare that they have no competing interests.
: The study was approved by the Medical Ethics Committee of the First Affiliated Hospital of Baotou Medical College. All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.