A simple underwater seal apparatus for use in emergencies.
Brock-Utne
J G
JG
Brodsky
J B
JB
Haddow
G
G
Mark
J B
JB
D002404:Catheterization / Q000295:instrumentation; D004322:Drainage / Q000295:instrumentation*; D004630:Emergencies; D004867:Equipment Design; D006801:Humans; D011030:Pneumothorax / Q000601:surgery*