A concise guide to observational studies in healthcare / Allan Hackshaw. [electronic resource] Hackshaw, Allan K., author. Medicine Research. Observational Study as Topic methods. Outcome and Process Assessment (Health Care) Epidemiologic Research Design. R852 610.72 23 Includes bibliographical references and index. Print version record and CIP data provided by publisher. 2015 Text 1 online resource. http://onlinelibrary.wiley.com/book/10.1002/9781118527122 eng Concise guide to observational studies in healthcare. Concise guide to observational studies in healthcare.