GAPDH and osteosarcoma: Following the publication of this paper, it was drawn to the Editor's attention by a concerned reader that the GAPDH control western blotting data shown in Fig. 1C were strikingly similar to data appearing in different form in another article written by different authors at different research institutes [Chen Y, Guo Y, Yang H, Shi G, Xu G, Shi J, Yin N and Chen D: TRIM66 overexpression contributes to osteosarcoma carcinogenesis and indicates poor survival outcome.