title: Definition of difficult tracheal intubation.
authors.forename: X
authors.initials: X
authors.lastname: Souvatzis
authors.forename: H
authors.initials: H
authors.lastname: Askitopoulou
mesh_terms: D006801:Humans; D007442:Intubation, Intratracheal / Q000009:adverse effects / Q000706:statistics & numerical data*; D017410:Practice Guidelines as Topic