Participants 150 women (18–45 years of age) with PMS or premenstrual dysphoric disorder. Intervention Random assignment (1:1:1) to treatment as usual (TAU), OLP without treatment rationale (OLP–), or ...

Correspondence to Dr John Ferguson, Clinical Research Facility, National University of Ireland Galway, Galway, Ireland; john.ferguson{at}nuigalway.ie Commonly accepted statistical advice dictates that ...

Correspondence to Michel de Lorgeril PRETA – TIMC – IMAG, Equipe Coeur & Nutrition, Faculté de Médecine, Domaine de la Merci, Université de Grenoble, 38706 La Tronche, France; michel.delorgeril{at}ujf ...

Correspondence to Sir Iain Chalmers, James Lind Initiative, Summertown Pavilion, Middle Way, Oxford OX2 7LG, UK; ichalmers{at}jameslind.net We are surrounded by maelstroms of claims about the effects ...

Correspondence to Dr Mohammad Hassan Murad, Evidence-based Practice Center, Mayo Clinic, Rochester, MN 55905, USA; murad.mohammad{at}mayo.edu When decision makers make a recommendation based on ...

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Globally, drug regulators have approved statins for the prevention of cardiovascular disease (CVD), although their use in primary prevention has been controversial. A highly publicised debate has ...

Health technology assessment in India in the next decade: reflections on a vision for its path to maturity and impact ...

Correspondence to Dr Veronika Williams, Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford OX2 6GG, UK; veronika.williams{at}phc.ox.ac.uk Given its scope and its place ...

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Objective To determine, for people seeking a date online, what activities and behaviours have an effect on the chances of converting electronic communication into a face-to-face meeting. Methods ...

Data-dredging bias encompasses a number of more specific questionable practices (eg, fishing, p-hacking) all of which involve probing data using unplanned analyses and then reporting salient results ...