Erratum to: Radiation-induced miR-208a increases the proliferation and radioresistance by targeting p21 in human lung cancer cells. Issue 1 (December 2016) - Tang, Yiting; Cui, Yayun; Li, Zengpeng; Jiao, Zhuqing; Zhang, Yong; He, Yan; Chen, Guangxia; Zhou, Qunyan; Wang, Wenjie; Zhou, Xifa; Luo, Judong; Zhang, Shuyu