TY - STAND AU - C. Becker AU - S. Jick AU - C. Meier AU - M. Bodmer BT - Diabetes Obes Metab DO - 10.1111/dom.12351 M1 - 11 PY - 2014 SP - 1148 EP - 54 T2 - Diabetes Obes Metab TI - Metformin and the risk of head and neck cancer: a case-control analysis VL - 16 SN - 1462-8902 ER -