title: Challenges, solutions and future directions in evaluative research.
authors: Professor of Health Care Evaluation, Department of Applied Health Research, University College, UK.
authors: Rosalind
authors: R
authors: Raine
authors: Professor of Public Health and Primary Care, Nuffield Department of Population Health, University of Oxford, UK.
authors: Ray
authors: R
authors: Fitzpatrick
authors: Assistant Director of Policy, Universities UK, UK john.depury@universitiesuk.ac.uk.
authors: John
authors: J
authors: de Pury
mesh_terms: D005544:Forecasting; D006302:Health Services Research / Q000379:methods* / Q000639:trends*; D006801:Humans; D012107:Research Design