Historical perspective of the "sniffing position".
Hirsch
N P
NP
Smith
G B
GB
Adnet
F
F
D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007442:Intubation, Intratracheal / Q000266:history*; D007828:Laryngoscopy / Q000266:history*; D011187:Posture