Are randomised trials obsolete or more important than ever?

At the 14th St. Gallen International Breast Cancer Conference (SG-BCC) 2015, Dr Clifford Hudis (Memorial Sloan Kettering Cancer Center, New York, NY) Dr Clifford Hudis (Memorial Sloan Kettering Cancer Center, New York, NY) discusses the use of electronic medical records as a source of data that could potentially transform healthcare. CancerLinQ is one initiative that is aiming to aggregate and analyse data collected from patients.