Tech Review reports on a new study from the Journal of Clinical Oncology that provides a link between personalized medicine and better health outcomes. For the study, oncologist Lecia Sequist genetically screened patients' lung cancers and then administered a drug tailored for that type of tumor — and those patients did better than the average chemotherapy outcomes. In particular, the study looked at AstraZeneca's Iressa, an EGFR inhibitor.