Text and Data Mining valid from 2019-08-28
Received: 17 December 2018
Revised: 5 August 2019
Accepted: 13 August 2019
First Online: 28 August 2019
Compliance with ethical standards
: Written informed consent was obtained from all patients involved in this study. The use of tissues in this study has been approved by the Institute Research Medical Ethics Committees of SYSUCC and The First Affiliated Hospital of Nanchang University.
: The authors declare that they have no conflict of interest.