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. In a press release, Steven Wooding, researcher leader at RAND Europe, said: "The study showed that research is important, that it has real tangible benefits for society and that how you fund it matters. If you want to make a difference to patients over a 15-20 year time-scale, clinical research is more effective. If you want to build knowledge for the longer-term, then basic research is better."