To compare the effect between general anesthesia by nasal cavity blindly intubation with and without topical anesthesia through thyrocricocentesis in maxillofacial operations.
比较行环甲膜穿刺表与否对全盲探插管的影响。
To compare the effect between general anesthesia by nasal cavity blindly intubation with and without topical anesthesia through thyrocricocentesis in maxillofacial operations.
比较行环甲膜穿刺表与否对全盲探插管的影响。
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