Acknowledgements
This research was supported by NIH under the award numbers: U10CA180899, U10CA180886, U10CA98413, and U10CA098543 as well as by NCI-R21CA155524 (Lamba and Walter), NCI (R01CA132946), and R01CA133881 (Aplenc). We are thankful to Yi-Cheng Wang and Dr. Todd Alonzo for their help in the manuscript.
Potential conflict of interest
Disclosure forms provided by the authors are available with the full text of this article online at https://doi.org/10.1080/10428194.2017.1421756.