00417nas a2200169   4500000000100000000000100001008004100002100001400043700001400057700001300071700001200084700001300096245010700109300001000216490000700226022001400233       2012                            d1 aM. Bodmer1 aC. Becker1 aC. Meier1 aS. Jick1 aC. Meier00aUse of metformin is not associated with a decreased risk of colorectal cancer: a case-control analysis  a280-60 v21  a1055-9965