Text and Data Mining valid from 2019-12-01
First Online: 30 December 2019
Ethics approval and consent to participate
: The study was approved by the Εthics Committee of the First Affiliated Hospital of Xi’an Jiaotong University. The hospital is the first level hospital in PR China. All experiments were performed in accordance with the principles of the Declaration of Helsinki. All participants provided their written informed consent to participate in the study.
: Not applicable.
: The authors declare that they have no competing interests.