Text and Data Mining valid from 2020-03-30
Received: 22 October 2019
Accepted: 6 March 2020
First Online: 30 March 2020
Ethics approval and consent to participate
: Ethical approval for this study was obtained from the Medical Ethics Committee of Xiangya Hospital, Central South University (no. 201910412). The study adhered to the Declaration of Helsinki. The administrative permissions were acquired by Dr. Guo’s team to access the data used in this research. The patient data was de-identified.
: All the patients gave their written informed consent to participate in this study. The consent for the publication of identifying images was obtained from the patient.
: The authors declare that they have no competing interests.