NDLI: Trend in dental research output in Iran over a period of 20 years (1990-2009).

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Trend in dental research output in Iran over a period of 20 years (1990-2009).

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Sadeghi, Masoumeh Shahravan, Arash Haghdoost, Ali Akbar Asgary, Saeed Rad, Maryam
Spatial Coverage	Japan Asia, Western Iran China
Description	Country affiliation: Iran Author Affiliation: Sadeghi M ( Kerman Oral and Dental Diseases Research Centre, Kerman, Iran.)
Abstract	INTRODUCTION: The number of scientific papers is a conventional metric for the measurement of a country's research performance in a particular area. OBJECTIVE: To evaluate the trend in Iranian publications of dental research results in peer-reviewed international scientific journals over the period 1999-2009, using national and international databases, and to compare the results with other countries. METHODS: The search process was performed by two independent persons in PubMed and Iranian Medline (IranMedex). Data extraction included the year of publication, total number of dental papers in each year, total number of Iranian dental papers in each year and number of papers with a high level of evidence; these were compared with those in other Asian countries. RESULTS: The total number of dental articles indexed in PubMed during the studied period was 207,689, with 671 being written by researchers who stated their affiliation as Iran. Although the proportion of Iranian dental articles to all published dental articles was 0.01% in 1990, this increased to 1.4% in 2009. Of all clinical trials indexed in PubMed from 1990 to 2009, only 0.62% had an author from Iran. The collaboration rate of authors ranged between 1 and 10. Turkey and Iran had a larger number of dental research publications compared with other Asian countries assessed in this study. CONCLUSION: During the last two decades, there has been a considerable increase in the number of dental papers by Iranian researchers indexed in the PubMed database.
File Format	HTM / HTML
ISSN	00206539
Issue Number	2
Volume Number	62
e-ISSN	1875595X
Journal	International Dental Journal
Language	English
Publisher	Wiley-Blackwell
Publisher Date	2012-04-01
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Discipline Dentistry Bibliometrics Dental Research Trends Asia, Western Authorship China Clinical Trials As Topic Statistics & Numerical Data Humans Iran Japan Medline Organizational Affiliation Periodicals As Topic Pubmed Publishing Review Literature As Topic Comparative Study Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Dentistry

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