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Correspondence to Dr Hendrika J Luijendijk, General Practice and Elderly Care Medicine, University Medical Centre Groningen, Groningen 9713 GZ, The Netherlands; h.j.luijendijk{at}umcg.nl PICOs are ...

Correspondence to Dr Kerry Dwan, Centre for Reviews and Dissemination, University of York, York, UK; Kerry.dwan{at}york.ac.uk A systematic review identifies, appraises and synthesises all the ...

1 Department of Orthopaedic Surgery, The Methodist Hospital, Houston, Texas, USA 2 Research Institute, The Methodist Hospital, Houston, Texas, USA Correspondence to Bradley Kenneth Weiner Department ...

Background Enzyme-inducing antibacterial drugs can impair the efficacy of hormonal contraceptives. Suspicion that other antibiotics might do likewise led to advice that extra contraceptive precautions ...

Drug treatment to reduce cholesterol to new target levels is now recommended in four moderate- to high-risk patient populations: patients who have already sustained a cardiovascular event, adult ...

Associate Editor, Evidence Based Medicine, Department of Family Medicine, University of Alberta, Canada Correspondence to Denise Campbell-Scherer Associate Professor, Department of Family Medicine, ...

Correspondence to: Dr Shoo K Lee, Department of Paediatrics, University of Toronto, 600 University Avenue, Room 19-231D, Toronto, Ontario, Canada M5G 1X5; sklee{at}sinaihealthsystem.ca ...

Correspondence to Dr Juan Victor Ariel Franco, Associate Cochrane Centre-Research Department, Instituto Universitario Hospital Italiano de Buenos Aires, Buenos Aires C1199, Argentina; ...

Objectives To examine the association between regulatory reviewer disagreements and postmarket safety actions among novel therapeutics approved by the US Food and Drug Administration (FDA) between ...

Correspondence to Dr Jian-peng Huang, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China; hopis{at}sina.com Objectives To assess the relative ...