研究单位:[1]Sichuan Cancer Hospital and Research Institute[2]Wuhan University[3]Xiangya Hospital of Central South University[4]Shanxi Province Cancer Hospital[5]Shandong Tumor Hospital[6]Henan Cancer Hospital[7]Peking University Cancer Hospital & Institute[8]Hebei Medical University Fourth Hospital
研究目的:
This is a randomized,prospective,multicenter study.