Effect of closure of holes in air entrainment oxygen masks.
Ebert
R J
RJ
Dominy
C B
CB
Murray
W B
WB
D006801:Humans; D008397:Masks / Q000592:standards* / Q000706:statistics & numerical data; D010100:Oxygen / Q000032:analysis; D010102:Oxygen Inhalation Therapy / Q000295:instrumentation*
D010100:Oxygen