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Observational studies

Systematic Review of Observational Studies Assessing Bleeding Risk in Patients with Atrial Fibrillation Not Using Anticoagulants

Luciane Cruz Lopes, Frederick A. Spencer, Ignacio Neumann, Matthew Ventresca, Shanil Ebrahim, Qi Zhou, Neera Bhatnagar, Sam Schulman, John Eikelboom, Gordon Guyatt

published 11 Feb 2014

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Fine-Scale Genetic Structure and Cryptic Associations Reveal Evidence of Kin-Based Sociality in the African Forest Elephant

Stephanie G. Schuttler, Jessica A. Philbrick, Kathryn J. Jeffery, Lori S. Eggert

published 05 Feb 2014

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Media Coverage of Medical Journals: Do the Best Articles Make the News?

Senthil Selvaraj, Durga S. Borkar, Vinay Prasad

published 17 Jan 2014

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Prevalence and Causes of Prescribing Errors: The PRescribing Outcomes for Trainee Doctors Engaged in Clinical Training (PROTECT) Study

Cristín Ryan, Sarah Ross, Peter Davey, Eilidh M. Duncan, Jill J. Francis, Shona Fielding, Marie Johnston, Jean Ker, Amanda Jane Lee, Mary Joan MacLeod, Simon Maxwell, Gerard A. McKay, James S. McLay, David J. Webb, Christine Bond

published 03 Jan 2014

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Optimal Caliper Width for Propensity Score Matching of Three Treatment Groups: A Monte Carlo Study

Yongji Wang, Hongwei Cai, Chanjuan Li, Zhiwei Jiang, Ling Wang, Jiugang Song, Jielai Xia

published 11 Dec 2013

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The External Validity of Randomized Controlled Trials of Hypertension within China: from the Perspective of Sample Representation

Xin Zhang, Yuxia Wu, Deying Kang, Jialiang Wang, Qi Hong, Le Peng

published 06 Dec 2013

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Transorbital Sonographic Evaluation of Normal Optic Nerve Sheath Diameter in Healthy Volunteers in Bangladesh

Rapeephan R. Maude, Md Amir Hossain, Mahtab Uddin Hassan, Sophie Osbourne, Katherine Langan Abu Sayeed, Mohammed Rezaul Karim, Rasheda Samad, Shyamanga Borooah, Bal Dhillon, Nicholas P. J. Day, Arjen M. Dondorp, Richard J. Maude

published 02 Dec 2013

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Publication Bias in Recent Meta-Analyses

Michal Kicinski

published 27 Nov 2013

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Insulin Therapy and Risk of Prostate Cancer: a Systematic Review and Meta-Analysis of Observational Studies

Yan-bo Chen, Qi Chen, Zhong Wang, Juan Zhou

published 25 Nov 2013

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The Magnitude of Tobacco Smoking-Betel Quid Chewing-Alcohol Drinking Interaction Effect on Oral Cancer in South-East Asia. A Meta-Analysis of Observational Studies

Stefano Petti, Mohd Masood, Crispian Scully

published 18 Nov 2013

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The Risk of Metabolic Syndrome in Patients with Rheumatoid Arthritis: A Meta-Analysis of Observational Studies

Jianming Zhang, Lingyu Fu, Jingpu Shi, Xin Chen, Yongze Li, Bing Ma, Yao Zhang

published 25 Oct 2013

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Are Patient Views about Antibiotics Related to Clinician Perceptions, Management and Outcome? A Multi-Country Study in Outpatients with Acute Cough

Samuel Coenen, Nick Francis, Mark Kelly, Kerenza Hood, Jacqui Nuttall, Paul Little, Theo J. M. Verheij, Hasse Melbye, Herman Goossens, Christopher C. Butler, on behalf of the GRACE Project Group

published 23 Oct 2013

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Informing Potential Participants about Research: Observational Study with an Embedded Randomized Controlled Trial

Helen M. Kirkby, Melanie Calvert, Richard J. McManus, Heather Draper

published 03 Oct 2013

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