Lawday, S.
Leaning, M.
Flannery, O.
Summers, S.
Antoniou, G. A.
Goodhand, J.
Bethune, R.
Antoniou, S. A.
Article History
Received: 21 August 2019
Accepted: 10 March 2020
First Online: 31 March 2020
Compliance with ethical standards
:
: The authors declare no conflicts of interest.
: Retrospective audit of local data was registered with the local hospital audit and governance department. No ethical approval was necessary for the systematic review.
: For this type of study, formal consent is not required.