Article History
Received: 18 July 2019
Accepted: 24 April 2020
First Online: 24 May 2020
Ethics approval and consent to participate
: The trial will be conducted in accordance with the guiding principles of the Declaration of Helsinki. The study protocol was approved by the Ethics Committee of the Liaoning Provincial Cancer Hospital (approval number 20180948–2) in October 2018. All patients will provide written informed consent prior to their participation in the trial.
: Not applicable.
: The authors declare that they have no competing interests.