00412nas a2200145 4500000000100000008004100001100001400042700001200056700001300068700001400081245014200095300000800237490000700245022001400252 2015 d1 aC. Becker1 aS. Jick1 aC. Meier1 aM. Bodmer00aNo evidence for a decreased risk of thyroid cancer in association with use of metformin or other antidiabetic drugs: a case-control study a7190 v15 a1471-2407