Identification of difficult laryngoscopy using an optimized hybrid architecture.

"Declarations Ethics approval and consent to participateAll the procedures were followed in accordance with the relevant guidelines (Ethics approval from Peking University Third Hospital), specifically, ethics permission for this research was obtained from the Medical Scientific Research Ethics Committee of Peking University Third Hospital (IRB00006761-2015021) on 30 March 2015. All participants provide informed consent to participate in the study. Patients were enrolled in this research at the Chinese Clinical Trial Registry (http://www.chictr.org.cn; identifier: ChiCTR-ROC-16008598) on 6 June 2016. Consent for publicationAll participants have provided their authorization and consent for the manuscript’s publication in case any personally identifiable information or images of the participants are present. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding This study was funded by grants from Wu Jieping Medical Foundation (320.6750.2023-08-5), Key Clinical Projects of Peking University Third Hospital (BYSYZD2021013), Innovation and Transformation Project, Peking University Third Hospital (BYSYZHKC2022103), Clinical Medicine Plus X - Young Scholars Project from Peking University (PKU2022LCXQ031)."

"Trial registration Ethics permission for this research was obtained from the Medical Scientific Research Ethics Committee of Peking University Third Hospital (IRB00006761-2015021) on 30 March 2015. A well-informed agreement has been received from all participants. Patients were enrolled in this research at the Chinese Clinical Trial Registry (http://www.chictr.org.cn, identifier: ChiCTR-ROC-16008598) on 6 June 2016."