Data Sources and Metrics
The 5th edition of the Research.com Best Medicine Scientists in Brazil Ranking is primarily based on bibliometric data collected from leading scholarly databases, including OpenAlex and CrossRef, supplemented by multiple other trusted sources. The citation-based metrics that form the foundation of this ranking were compiled on January 12, 2026. A scientist’s position in the ranking is determined exclusively by their D-index (Discipline H-index), a refined metric that takes into account only the publications and citation impact within the specific discipline under examination — in this case, Medicine. This approach ensures that the ranking reflects disciplinary depth and expertise rather than general research output.
Scope of Research and Inclusion Criteria
Our analysis encompassed 188,153 scientist profiles identified from a diverse array of bibliometric data sources, covering all fields of study. From this extensive dataset, 61 scientists specializing in Medicine within Brazil were closely examined. To qualify for inclusion in the Medicine-specific ranking, a researcher’s D-index had to be at least 70, and the majority of their tier publications needed to be within the field of Medicine. Additionally, awards and other recognized academic achievements in Medicine were considered as supplementary factors enhancing the robustness of the evaluation.
The threshold for D-index selection is dynamically adjusted in increments of 10 based on the estimated total number of scholars in each discipline, ensuring that the top 1% of researchers are consistently incorporated across all fields. Moreover, to maintain accuracy in disciplinary relevance, the difference between a scientist’s general H-index and their D-index is limited to a proximity of 30% or less, thus confirming that the researcher’s impact is indeed rooted in Medicine.
Additional Verification Practices
Recognizing that raw bibliometric data are never sufficient as an absolute measure of a scholar’s output or impact, the Research.com team has applied rigorous manual verification processes. Each scientist’s profile was carefully reviewed and cross-correlated against a wide range of reputable publication and citation sources to confirm accuracy and legitimacy. While the precise number of publications in prominent journals and conference proceedings does not directly influence the ranking position, we acknowledge that such metrics provide valuable secondary signals of a researcher’s contribution to their field.
The final ranking positions are established through the calculated D-index values derived from open and well-respected bibliometric platforms such as OpenAlex and CrossRef. These databases represent the most comprehensive and widely recognized repositories of citation data available to the global research community. For those interested in a detailed explanation of the methodology and data processing procedures, we encourage visiting our methodology page.
Research.com’s Mission Behind the Ranking
At Research.com, our mission is to foster a more transparent and informed scientific ecosystem by motivating researchers, companies, and policymakers worldwide to better understand emerging trends and the leading experts driving progress. This ranking serves as a trusted resource for the global scientific community to identify top scholars in specific disciplines, such as Medicine, within Brazil and beyond. By highlighting the accomplishments and impact of these leading scientists, we aim to facilitate collaboration, recognition, and strategic decision-making across academic and research institutions.
We are committed to the highest standards of credibility and meticulousness in compiling this ranking, ensuring it is a reliable and meaningful tool for researchers and institutional representatives alike.
