Research methods

A method for early evaluation of a recently introduced technology by deriving a comparative group from existing clinical data: a case study in external support of the Marfan aortic root
Tom Treasure, Sonya Crowe, K M John Chan, Aaron Ranasinghe, Rizwan Attia, Belinda Lees, Martin Utley, Tal Golesworthy, John Pepper

BMJ Open Jan 2012, 2 (2) e000725; DOI: 10.1136/bmjopen-2011-000725
Feasibility study of geospatial mapping of chronic disease risk to inform public health commissioning
Douglas Noble, Dianna Smith, Rohini Mathur, John Robson, Trisha Greenhalgh

BMJ Open Jan 2012, 2 (1) e000711; DOI: 10.1136/bmjopen-2011-000711
Detecting and measuring deprivation in primary care: development, reliability and validity of a self-reported questionnaire: the DiPCare-Q
Paul Vaucher, Thomas Bischoff, Esther-Amélie Diserens, Lilli Herzig, Giovanna Meystre-Agustoni, Francesco Panese, Bernard Favrat, Catherine Sass, Patrick Bodenmann

BMJ Open Jan 2012, 2 (1) e000692; DOI: 10.1136/bmjopen-2011-000692
Protocol: a realist review of user fee exemption policies for health services in Africa
Emilie Robert, Valéry Ridde, Bruno Marchal, Pierre Fournier

BMJ Open Jan 2012, 2 (1) e000706; DOI: 10.1136/bmjopen-2011-000706
Protocol for a qualitative study exploring the roles of ‘Diffusion Fellows’ in bridging the research to practice gap in the Nottinghamshire, Derbyshire and Lincolnshire Collaboration for Leadership in Applied Health Research and Care (CLAHRC-NDL)
Emma Rowley

BMJ Open Jan 2012, 2 (1) e000604; DOI: 10.1136/bmjopen-2011-000604
Improving the recruitment activity of clinicians in randomised controlled trials: a systematic review
Ben Fletcher, Adrian Gheorghe, David Moore, Sue Wilson, Sarah Damery

BMJ Open Jan 2012, 2 (1) e000496; DOI: 10.1136/bmjopen-2011-000496
Do urology journals enforce trial registration? A cross-sectional study of published trials
Frank Kunath, Henrik R Grobe, Bastian Keck, Gerta Rücker, Bernd Wullich, Gerd Antes, Joerg J Meerpohl

BMJ Open Jan 2011, 1 (2) e000430; DOI: 10.1136/bmjopen-2011-000430
Characteristics of randomised trials on diseases in the digestive system registered in ClinicalTrials.gov: a retrospective analysis
Signe Wildt, Aleksander Krag, LiseLotte Gluud

BMJ Open Jan 2011, 1 (2) e000309; DOI: 10.1136/bmjopen-2011-000309
Cost-effectiveness of cardiac resynchronisation therapy for patients with moderate-to-severe heart failure: a lifetime Markov model
Mattias Neyt, Serge Stroobandt, Caroline Obyn, Cécile Camberlin, Stephan Devriese, Chris De Laet, Hans Van Brabandt

BMJ Open Jan 2011, 1 (2) e000276; DOI: 10.1136/bmjopen-2011-000276
Meeting the demand for more sophisticated study designs. A proposal for a new type of clinical trial: the hybrid design
Guoxing G Soon, Lei Nie, Thomas Hammerstrom, Wen Zeng, Haitao Chu

BMJ Open Jan 2011, 1 (2) e000156; DOI: 10.1136/bmjopen-2011-000156

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