Kovarik, Josef Paul
Voborna, Iva
Barclay, Stewart
Nicol, Ailsa
Kelly, Charles
Kovarik, Petr Daniel
Iqbal, Muhammad Shahid
Kovarik, Josef
Article History
Received: 29 September 2020
Accepted: 18 December 2020
First Online: 22 October 2021
Ethics declaration
: The authors do not declare any conflict of interest. This retrospective study was registered with the local hospital clinical effectiveness register as a service review project (project number 9698). The data used in this study were obtained from the previous clinical practice and the patient's identification and personal information was protected anonymously. The Chair of Newcastle and North Tyneside 1 Research Ethics Committee confirmed ethical approval was not required. The authors followed the local institutional ethical protocols.