title: Alfentanil and propofol for difficult tracheal intubation.
authors.forename: M J
authors.initials: MJ
authors.lastname: Levitt
authors.forename: L A
authors.initials: LA
authors.lastname: Woods
mesh_terms: D015760:Alfentanil; D006801:Humans; D007442:Intubation, Intratracheal; D015742:Propofol; D012119:Respiration / Q000187:drug effects
chemical_list: D015760:Alfentanil; D015742:Propofol