Basic biomedical research has a greater academic impact and clinical research a greater societal impact over a 15 to 20 years timescale, according to the findings of Project Retrosight — a multinational, four-year study from RAND Europe and the Health Economics Research Group (HERG) at Brunel University. This study was based on data collected from 29 case studies on basic biomedical and clinical cardiovascular and stroke grant-funded, research projects in Australia, Canada and the United Kingdom.