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. Author manuscript; available in PMC: 2015 Apr 1.
Published in final edited form as: Laryngoscope. 2013 Oct 9;124(4):838–845. doi: 10.1002/lary.24401

Figure 1.

Figure 1

Study flow diagram

*Participants were considered to have a major complication if they had a diagnostic or procedural code for skull base injury, orbital injury, ICA injury, or other hemorrhagic injury that resulted in a blood transfusion.