Article History
Received: 9 July 2021
Accepted: 24 September 2021
First Online: 14 October 2021
Declarations
:
: The authors declare no conflict of interest. There are no financial conflicts of interest to disclose.
: All data from the SEER database are de-identified prior to publication to the public, so the cases extracted from the SEER database do not contain any personal identifying information and, therefore, no ethical approval is required for this study.