Funding for this research was provided by:
Division of Cancer Prevention, National Cancer Institute (UG1CA189974)
Received: 24 February 2020
Accepted: 18 June 2020
First Online: 8 July 2020
Ethics approval and consent to participate
: This study was reviewed and approved by the Institutional Review Board at each of the SWOG study sites.
: All subjects participated in this study signed the Informed Consent approved by the respective Institutional Review Board to have the results of this study published in medical journals. The consent form informed patients that no personal information will be revealed.
: The authors declare that they have no competing interests.