患者,男,18岁,今日上体育课时突然发生左侧胸痛,呼吸时加重并伴呼吸困难而急诊入院。查体:BP 110/75mmHg,左肺呼吸音消失。最可能的疾病是
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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