A new twist in approaching difficult tracheal intubation. Description of an economic, easy, and effective way: the sigma way.
La Colla
Luca
L
La Colla
Giorgio
G
Poli
Davide
D
Albertin
Andrea
A
D006801:Humans; D007442:Intubation, Intratracheal / Q000191:economics / Q000379:methods*