00394nas a2200169   4500000000100000000000100001008004100002100001400043700001300057700001800070700001200088700001300100245007900113300001100192490000700203022001400210       2010                            d1 aM. Bodmer1 aC. Meier1 aS. Krahenbuhl1 aS. Jick1 aC. Meier00aLong-term metformin use is associated with decreased risk of breast cancer  a1304-80 v33  a0149-5992