Funding for this research was provided by:
Center for Strategic Scientific Initiatives, National Cancer Institute (CA111412, CA197292, CA65493)
Received: 2 June 2020
Revised: 18 August 2020
Accepted: 9 October 2020
First Online: 23 October 2020
Compliance with ethical standards
: MF, JSM, and DAV consult for and hold stock options in GT Biopharma, a company which may commercially benefit from the results of this research project. These interests have been reviewed and managed by the University of Minnesota in accordance with its conflict of interest policy.