TY - STAND AU - Y. Vinogradova AU - C. Coupland AU - J. Hippisley-Cox BT - Bmj DO - 10.1136/bmj.f114 PY - 2013 EP - f114 T2 - Bmj TI - Exposure to bisphosphonates and risk of gastrointestinal cancers: series of nested case-control studies with QResearch and CPRD data VL - 346 SN - 0959-8138 ER -