清开灵联合头孢哌酮钠/舒巴坦钠治疗老年肺气肿合并感染的疗效观察
청개령연합두포고동납/서파탄납치료노년폐기종합병감염적료효관찰
Clinical observation of qingkailing combined with cefoperazone/sulbactam in treatment of senile emphysema concurrent infections
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