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Contributors LP, CC and SM helped prepare this document.
Funding Institutional funding.
Competing interests SM is a director on the boards of the American Society of Regional Anesthesia and Pain Medicine and the Society of Anesthesia and Sleep Medicine. He is a one-time consultant for Sandoz Inc. and the holder of US Patent US-2017-0361063, Multicatheter Infusion System. He is the owner of SGM Consulting, LLC and co-owner of FC Monmouth, LLC. None of the above relations influenced the conduct of the present study.
Patient consent for publication Not required.
Provenance and peer review Not commissioned; internally peer reviewed.