Funding for this research was provided by:
Science and Technology Research and Development Foundation of Shenzhen (JCYJ20160429172357751)
Received: 1 January 2020
Accepted: 13 April 2020
First Online: 15 May 2020
Ethics approval and consent to participate
: The study protocol has been approved by the Clinical Research Ethics Committee of the Shenzhen University on May 10th, 2016 and has been registered. All patients signed an informed consent form.
: Written consent was provided for images of the patients and techniques, clinical details and identifying information such as age, profession and gender to be included and published.
: The authors declare that they have no competing interests.