1 Department of Anaesthesia & Intensive Care Medicine, Manchester University NHS Foundation Trust, Manchester Academic Critical Care, Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester Manchester, UK, brendan.mcgrath@manchester.ac.uk.
2 Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy, Department of Anesthesiology and Intensive Care, San Martino Policlinico Hospital, Instituto di Ricovero e Cura a Carattere Scientifico for Oncology and Neurosciences, Genoa, Italy.
3 Global Tracheostomy Collaborative, Raleigh, North Carolina, American Academy of Otolaryngology - Head & Neck Surgery, Alexandria, Virginia, Department of Otolaryngology - Head & Neck Surgery, University of Michigan Medical School, Ann Arbor, Michigan.