[Ultrasound technique to locate the first tracheal ring].
Arezki
Farid
F
Netcheva
Galina
G
Johann
Ulrich
U
Eichler
Andréas
A
D003413:Cricoid Cartilage / Q000000981:diagnostic imaging; D006801:Humans; D013957:Thyroid Cartilage / Q000000981:diagnostic imaging; D014132:Trachea / Q000000981:diagnostic imaging*; D014140:Tracheotomy / Q000379:methods*; D014463:Ultrasonography