Systematic literature reviews including meta-analyses are invaluable scientific activities. The rationale for such reviews is well established. Health care providers, researchers, and policy makers are inundated with unmanageable amounts of information; they need systematic reviews to efficiently integrate existing information and provide data for rational decision making. Systematic reviews es...

introduction: an article with a clear message can transfer research knowledge better. however, this is the case when the message suits the type of  study methodology (research design) and its results. the objective of  this study was to assess the presence of  message articles and the type of  study methodologies. methods: articles published between 2001 and 2006, on maternal care, diabetes, an...

decisions in healthcare should be based on information obtained according to the principles of evidence-based medicine (ebm). an increasing number of systematic reviews are published which summarize the results of prevalence studies. interpretation of the results of these reviews should be accompanied by an appraisal of the methodological quality of the included data and studies. the critical a...

chiropractic is a complementary medicine that has been growing increasingly in different countries over recent decades. it addresses the prevention, diagnosis and treatment of the neuromusculoskeletal system disorders and their effects on the whole body health. this study aims to evaluate the effectiveness of chiropractic in the treatment of different diseases. to gather data, scientific electr...

background and aims: crocus sativus is of medicinal plants possessing many beneficial effects in treatment of various disorders. this study aimed to overview the therapeutic effects of crocus sativus on the basis of reviews and systematic reviews. methods: computerized search of review articles was performed using pubmed, google scholar, scopus and web of science, medline database from 1996 to ...

Background: Recent studies indicate an increased incidence of pertussis disease in recent years. The aim of this study was to evaluate the efficacy of the acellular vaccine for children (as a replacement of current whole cell vaccine in the Expanded Program on Immunization) and for high-risk adults in Iran through updating current best available evidence.   Methods: We performed a syste...