Funding for this research was provided by:
Innovative Research Group Project of the National Natural Science Foundation of China (81472441)
Text and Data Mining valid from 2020-03-17
Received: 8 January 2020
Accepted: 3 March 2020
First Online: 17 March 2020
Ethics approval and consent to participate
: This head-to-head observational series was approved by the institutional review board of Jiangsu Cancer Hospital, Nanjing Medical University, China. The informed consent requirement was waived. The committee’s reference number was Jiangsu Cancer Hospital’s Ethical Committee 2016-05-01.
: Written, informed consent was obtained from the patient for publication of this case series and any accompanying images.
: The authors declare that they have no competing interests.