患者,男,26岁,2个月前因急性脓胸经多次胸腔穿刺捆脓及抗菌治疗后,仍有低热、消瘦,胸部X片右胸仍可见有包裹性脓腔,入院后行胸腔闭式引流术,每日引流脓液40〜50ml,胸片及胸部CT显示右下胸部有一9cmX7cm残腔,壁厚约2mm,未见钙化,肺内未见病变,进一步治疗应选择
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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