GPC1 and familial pancreatic carcinoma: We found that a few tumor images in Figure 5B “GPC1-LP (GEM) inhibited tumor growth of the orthotopic pancreatic cancer mice” are duplications of tumor images in Figure 6A published earlier in an unrelated paper [1] and Figures 6B, 6b, 6B and 4G published in four more unrelated papers [2–5], some of which already have been retracted.