检测16例呼吸衰竭（呼衰）患儿血中循环内皮细胞（CEC）含量。
The circulating endothelial cells (CEC) of 15 healthy children and 16 patients with respiratory failure were counted respectively.
检测16例呼吸衰竭（呼衰）患儿血中循环内皮细胞（CEC）含量。
The circulating endothelial cells (CEC) of 15 healthy children and 16 patients with respiratory failure were counted respectively.
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