Four different models for simulation-based training of bronchoscopic procedures.

"Declarations Ethics approval and consent to participateApproval for the study, including approval of experimental protocols, was given by the University of Dundee Thiel Advisory group and Ambu Internal Ethics Commitee (ANI-0016-2021). The research complies with the Anatomy Act (1984) and the Human Tissue (Scotland) Act 2006. Informed consent was obtained from all participants. Consent for publicationNot applicable. Competing interestsNone of the authors have competing interests to declare regarding bronchoscopy models. Ambu aScope 4 Broncho was used for the study and S. Kronborg and A. Lundgaard are employed by Ambu A/S. A. Arshad is a paid consultant for Ambu A/S. Competing interests None of the authors have competing interests to declare regarding bronchoscopy models. Ambu aScope 4 Broncho was used for the study and S. Kronborg and A. Lundgaard are employed by Ambu A/S. A. Arshad is a paid consultant for Ambu A/S."

"Funding This study was financed by Ambu A/S."