Secondary endpoints included overall survival, safety, patients' satisfaction with and perception of treatment convenience, and medical resource utilization.
次要观察终点包括总生存期，安全性，患者对治疗设施的满意度和理解以及医疗资源的利用。
It not only strength the complex utilization degree of tailing, but also open up a path for exploit of secondary resource and product high added value production.
加大了尾矿综合利用的程度，并为二次资源开发、生产高附加值产品开辟了一条途径。
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