title: Accidental intubation of the oesophagus and preoxygenation.
mesh_terms: D004947:Esophagus; D006801:Humans; D007442:Intubation, Intratracheal / Q000009:adverse effects*; D010100:Oxygen / Q000008:administration & dosage; D011300:Preoperative Care
chemical_list: D010100:Oxygen