Received: 28 December 2017
Accepted: 9 June 2019
First Online: 20 June 2019
Ethics approval and consent to participate
: The study protocol had approved process by the Research and Ethics Committee of Aerospace Center Hospital. We had received informed consent in written format from all participating patients before the start of the project.
: Not applicable.
: The authors declare that they have no competing interests. The co-author Xiangmei Chen is the Editorial Board Member of BMC Nehrology.