Related Articles: Merck's Keytruda held back by docs who don't want to wait for diagnostics Bristol's Opdivo - Yervoy combo ups response rates in first - line lung cancer patients Roche's Tecentriq bursts
onto immuno - oncology scene, with Merck and BMS in its sights Bristol - Myers» new Opdivo ad touts biomarker advantage over Merck's Keytruda Merck's Keytruda lines up its survival data for stepped - up battle with BMS» Opdivo