Approved by: Frontiers Editorial Office, Frontiers Media SA, Switzerland
*Correspondence: Lin Kong,
This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Affiliation “Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, China” was omitted for all authors. This affiliation has now been added for all authors.
Affiliation “Shanghai Key Laboratory of Radiation Oncology, Shanghai, China” was omitted for all authors. This affiliation has now been added for all authors.
Affiliation “Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China” was omitted for all authors. This affiliation has now been added for all authors.
All authors were erroneously assigned to affiliation Shanghai Proton and Heavy Ion Center (SPHIC), Shanghai, China. This affiliation has now been removed for all authors.
The original version of this article has been updated.
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.