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Contributors EC created the porcine model, drafted the manuscript and undertook the teaching session. GN designed and undertook the teaching session in which the described model was used. AP is the senior author. He edited the manuscript and taught at the teaching session.
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 AP has received honoraria from GE healthcare for teaching and consults for B Braun Medical. This work did not receive any specific grant from funding agencies in the public, commercial or not-for-profit sectors.
Provenance and peer review Not commissioned; internally peer reviewed.
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