Magill's endobronchial tubes.
Westhorpe
R
R
D000818:Animals; D001315:Australia; D001980:Bronchi; D004285:Dogs; D005060:Europe; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007440:Intubation / Q000266:history* / Q000295:instrumentation