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Correspondence to Dr Michael P Hengartner, Department of Applied Psychology, Zurich University of Applied Sciences, Zurich Switzerland; michaelpascal.hengartner{at}zhaw.ch Dr Adlington1 recently drew ...

Quantifying the time-varying association between objectively measured physical activity and mortality in US older adults over a 12-year follow-up period: the NHANES 2003–2006 study ...

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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 ...

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 ...

Vaccination is a life-saving endeavour, yet risk and uncertainty are unavoidable in science and medicine. Vaccination remains contentious in the public mind, and vaccine hesitancy is a serious public ...

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Correspondence to Dr Zachary Munn, JBI, The University of Adelaide Faculty of Health and Medical Sciences, Adelaide, South Australia, Australia; zachary.munn{at}adelaide.edu.au We are concerned about ...