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Authors
Sun, Haitao
Zhang, Guohua
Ai, Bolun
Zhang, Huimin
Kong, Xiangyi
Lee, Wan-Ting
Zheng, Hui
Yan, Tao
Sun, Li
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Funding
Funding for this research was provided by:
Teaching Reform Project of Peking Union Medical College (10023201800307)
Beijing Hope Marathon Special Fund of Chinese Cancer Foundation (LC2017B25)
Natural Science Foundation of Inner Mongolia Autonomous Region of china (2015MS0835)
Sanming Project of Medicine in Shenzhen, Cancer Pain Treatment and Perioperative Medical Team of Professor Li Sun in Cancer Hospital, Chinese Academy of Medical Sciences (-)
Special Research Fund for Central Universities, Peking Union Medical College (3332019050, 3332019053, 3332019140)
Beijing Municipal Natural Science Foundation (7204293)
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Article History
Received: 28 May 2019
Accepted: 3 December 2019
First Online: 23 December 2019
Ethics approval and consent to participate
: Because this is only a systematic review of previous retrospective studies and does not involve any human experiments or animal experiments, ethics approval and consent are not applicable.
: Not applicable.
: The authors declare that they have no competing interests.
