Footnotes

• Contributors JT, VC, PP, and AA contributed to the drafting and revision of this letter critically for important intellectual content.

• Competing interests VC has received an honorarium from Aspen Pharma, BBraun, Smiths Medical, and SonoSite. PP received equipment support from SonoSite Fujifilm Canada. AA is an Anatomy Faculty with Allergan Academy of Excellence.

• Patient consent for publication Not required.

• Ethics approval This letter to the editor includes a non-identifiable cadaveric dissection image and the use was approved by the University of Toronto Health Sciences Research Ethics Board (#27210).

• Provenance and peer review Not commissioned; internally peer reviewed.