1. Division of Cardiac Surgery Johns Hopkins Hospital Baltimore Maryland USA
2. Johns Hopkins Medicine Howard County General Hospital Columbia Maryland USA
3. Johns Hopkins School of Nursing Baltimore Maryland USA
4. University of Manchester, NHS Foundation Trust, National Tracheostomy Safety Project Manchester UK
5. Department of Otolaryngology – Head & Neck Surgery University of Michigan Medical School Ann Arbor Michigan USA
6. Global Tracheostomy Collaborative Raleigh North Carolina USA
7. Department of Nursing Faculty Johns Hopkins University Baltimore Maryland USA