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Contributors DLH: Study idea, ultrasound guided injections, dissection, writing of first draft, preparation of figures, editing of article and approval of final manuscript. BPM: Study idea, editing first draft and approval of final manuscript. MAJW: Dissection, preparation of figures, approval of final manuscript. EAM: Obtained ethical approval, dissection and approval of final manuscript.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient consent for publication Not required.
Ethics approval Ethical approval for this study was granted by the Ethics Committee at Queen’s University Belfast, UK.
Provenance and peer review Not commissioned; internally peer reviewed.