A scientist’s position in the ranking is determined by their D-index (Discipline H-index), a specialized metric that considers only those publications and citations within the examined discipline—Medicine in this case. This approach ensures that the ranking reflects expertise and impact specifically within the medical research domain rather than a researcher’s overall publication profile.
Scope of Research and Qualification Criteria
The ranking was compiled from an initial pool of 188,153 scientist profiles sourced from a variety of bibliometric platforms across all disciplines. Within Medicine specifically, 19 distinguished scientists were examined in detail. To qualify for inclusion in the ranking, each scientist was required to meet a minimum D-index threshold of 70, ensuring representation of only top-tier experts in the field.
Moreover, a qualifying scientist needed to have a majority of their tier publications concentrated in Medicine. Awards and achievements relevant to medical research were also considered as supplementary factors to validate impactful contributions. The D-index threshold is established in increments of 10 relative to the estimated total number of scholars in each discipline, which guarantees that the top 1% of leading researchers are incorporated into the list.
Additionally, to maintain disciplinary specificity, a proximity condition is imposed wherein the difference between a scientist’s general H-index and their D-index must be 30% or less. This criterion reinforces the relevance of the ranking to subject-focused scholarly performance rather than overall academic output.
Verification Practices and Additional Considerations
Recognizing that raw bibliometric data alone cannot fully capture the complexity of a researcher’s scientific contributions, all scientist profiles were manually verified and cross-correlated against publications indexed in a wide array of trustworthy sources. This meticulous verification process enhances the credibility and precision of the ranking.
While the number of publications in prominent journals and conference proceedings is not a direct factor influencing a researcher’s position in the Research.com ranking, it serves as a valuable secondary indicator of scientific impact. We emphasize that the ranking’s foundation lies in the D-index calculated from data gathered exclusively from OpenAlex and CrossRef.
For deeper insight into the comprehensive methodology employed in constructing this ranking, interested readers are encouraged to visit our methodology page.
Research.com’s Mission and Vision
At Research.com, our mission is to inspire researchers, academic institutions, industry leaders, and policymakers worldwide to understand the current trajectories of leading experts. By providing transparent, data-driven rankings, we strive to facilitate global awareness of top scientists in specific research areas, within countries, and across institutions.
Through the careful and rigorous development of this ranking, we aim to foster collaboration, informed decision-making, and recognition of outstanding contributions in the field of Medicine, ultimately advancing scientific progress worldwide.
