Impact of the Coronavirus Pandemic on Patients Requiring Tracheal Intubation by Helicopter Emergency Medical Services: A Retrospective, Single-Center, Observational Study., Hayashi Kentaro;Kikuchi Jin;Hishinuma Hidekazu;Noguchi Takafumi;Zaitsu Masayoshi;Wake Koji, Journal of clinical medicine, 13(13), 25 Jun. 2024