Received: 22 April 2020
Accepted: 6 October 2020
First Online: 16 October 2020
Ethics approval and consent to participate
: The Institutional Research Board at Memorial Sloan Kettering Cancer Center approved this study.
: Not applicable.
: M.H. receives research funding from Varian Medical Systems. M.Z. is a consultant for Boston Scientific and Editor in-Chief of <i>Brachytherapy</i>. All other authors declare that they have no competing interests.