Preoxygenation techniques.
Russell
G N
GN
Smith
C L
CL
Snowdon
S L
SL
Bryson
T H
TH
D000773:Anesthesia, Obstetrical / Q000379:methods*; D005260:Female; D006801:Humans; D010102:Oxygen Inhalation Therapy / Q000379:methods*; D011247:Pregnancy