Graduated in Medicine, University of Leipzig, Germany; postgraduate training in cardiology and health services research, Leipzig, London and Oxford. Former Research Fellow, Clinical Trial Service and Epidemiological Studies Unit, Oxford. 2010, joined George Centre for Healthcare Innovation, University of Oxford; currently, Deputy Director. Research interests include: innovation in chronic disease prevention and management; large-scale complex intervention studies; development of innovative methodologies in health services and systems research, such as complexity science.