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1
B
B
http://dx.doi.org/10.1136/BMJ.324.7343.977/B
Endoscopy is useful during percutaneous tracheostomy.
P356
Q42262660-522F16DC-BF68-4DCC-9FBD-3D97574F4E0C
P356
B
http://dx.doi.org/10.1136/BMJ.324.7343.977/B