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