Text and Data Mining valid from 2018-09-07
First Online: 7 September 2018
Compliance with ethical guidelines
: Q. Lai, Q. Wang, H. Liu, D. Chen, Z. Wan, X. Yu, R. Guo, X. Liu, M. Dai and B. Zhang declare that they have no competing interests.
: This study was approved by the ethical review committee of The First Affiliated Hospital of Nanchang University Medical School and written informed consent was obtained from the patient.