Zhigang Cui1, Xin Zheng1, Di Kong2. 1. Department of Oncology, Tianjin Nankai Hospital, No.6 of Changjiang Road, Nankai District, Tianjin, 300100, People's Republic of China. 2. Department of Oncology, Tianjin Nankai Hospital, No.6 of Changjiang Road, Nankai District, Tianjin, 300100, People's Republic of China. dockongdi@163.com.
Expression of Concern to: World J Surg Oncolhttps://doi.org/10.1186/s12957-016-0784-xThe Editor-in-Chief is issuing an editorial expression of concern to alert readers that this article [1] contains substantial overlap with articles published within a close time frame [2-5]. None of the authors have responded to any correspondence from the editor or publisher about this editorial expression of concern.