Article History
Received: 25 September 2020
Accepted: 1 December 2020
First Online: 15 December 2020
Compliance with ethical standards
:
: All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest (such as honoraria; educational grants; participation in speakers’ bureaus; membership, employment, consultancies, stock ownership, or other equity interest; and expert testimony or patent-licensing arrangements), or non-financial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this manuscript with the exception of Mr. Ian Paddick who reports ad hoc consultancy fees from Elekta Instruments AB, outside the submitted work; Dr. Cameron reports personal fees and non-financial support from Elekta, outside the submitted work.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee (NHS Health Research Authority) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: For this type of study, formal consent is not required.