The authors regret that the following financial relationship was not previously disclosed upon publication of this article. Please note that Dr. John E. Bayouth has reported being a member of the Advisory Board of ViewRay Inc, dating from April 4, 2018, and became a corporate manager of MR Guidance LLC dating from May 19, 2019, which provides consulting services for MRI-guided radiation therapy, and has business activity with a company that utilizes deformable image registration and motion management technology (ViewRay, Inc.).
The authors would like to apologise for any inconvenience caused.