Clare Michell1, Pippa Oakeshott. 1. Academic ST4 GP, Population Health Sciences and Education, St George's University, London. E-mail: cmichell@sgul.ac.uk.
Authors: Caroline Free; Rosemary Knight; Steven Robertson; Robyn Whittaker; Phil Edwards; Weiwei Zhou; Anthony Rodgers; John Cairns; Michael G Kenward; Ian Roberts Journal: Lancet Date: 2011-07-02 Impact factor: 79.321