Function of  hsa_circ_0006646  as a competing endogenous RNA to promote progression in gastric cancer by regulating the  miR-665–HMGB1  axis

Jing Qin, Shuman Zhen, Jiali Wang, Wei Lv, Yan Zhao, Yuqing Duan, Tianxu Liu, Lei Feng, Guiying Wang, Lihua Liu