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AMA Scholars ranked among the World's Top Scientists for 2023

27 Oct 2023

Nine AMA Scholars are proudly listed among the World's Top 2% scientists by Stanford University for 2023. On October 4, 2023, Professor John P.A. Ioannidis and his team at Stanford University released the list of World's Top 2% Scientists for the year 2023. This list is compiled in the "updated science-wide author database of standardized citation indicators," which is a publicly accessible database that provides comprehensive information on the citation metrics of top-cited scientists. The database includes metrics such as citations, h-index, co-authorship adjusted hm-index, citations to papers in different authorship positions, and a composite indicator known as the c-score. The data presented in the database are divided into two categories: career-long and single recent year impact. Additionally, the metrics are provided with and without self-citations, along with a ratio of citations to citing papers. The scientists in the database are categorized into 22 scientific fields and 174 sub-fields based on the Science-Metrix classification system. Furthermore, field- and subfield-specific percentiles are assigned to scientists who have published at least 5 papers. The career-long data in the database are updated until the end of 2022, while the single recent year data reflect citations received during the calendar year 2022. The selection process for inclusion in the list is based on the c-score of the top 100,000 scientists (including and excluding self-citations), or a percentile rank of 2% or higher in their respective sub-fields. The current version (6) of the database is derived from the October 1, 2023 snapshot obtained from Scopus, which is updated to include data until the end of the citation year 2022.

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