Liu, Jing
Xu, Cong
Xu, Danni
Cao, Lu
Xue, Huiqin
Meng, Qingxiang
Niu, Yun http://orcid.org/0000-0001-5917-5604
Funding for this research was provided by:
National Natural Science Foundation of China (81470119)
Tianjin Municipal Science and the Technology Commission Research Fund (15JCYBJC27800)
Article History
Received: 6 November 2019
Revised: 4 February 2020
Accepted: 10 February 2020
First Online: 21 February 2020
Compliance with ethical standards
: The study protocol was approved by the Human Ethical Committee of Tianjin Medical University Cancer Institute and Hospital and has been performed in accordance with the Declaration of Helsinki (1964) and its later amendments.
: The authors declare that they have no conflict of interest.
: Informed consent was obtained from all patients before their surgery and before examination of the specimens.