击入性骨折(blow-in fracture)是当眼部被钝器击伤时,眼球突然向后移位,眶内压力剧增,致使眶底薄弱处发生骨折,骨折片、眶内软组织、眼肌等随之疝入额窦
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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