Received: 29 March 2019
Accepted: 11 September 2019
First Online: 15 November 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board (IRB) of the University of Southern California. The written informed consent to participate in the study was be obtained from all participants. No animal was involved in this study.
: Not applicable
: Dr. Pinski and Dr. Epstein are the co-founders of Cell BT, Inc. All other authors declare that they have no competing interests.