The bibliometric data used to devise the citation-based metrics underpinning the ranking were collected on January 12, 2026. A critical metric employed in positioning scientists within this ranking is the D-index (Discipline H-index), which is a discipline-specific variation of the traditional H-index. It exclusively accounts for papers and citation metrics pertinent to the specific scientific discipline under examination — in this case, Medicine — ensuring that the ranking reflects true domain expertise and impact.
Scope and Selection Criteria
The ranking’s scope initially encompassed 188,153 scientist profiles identified from a diverse array of bibliometric data sources across all disciplines. From this broad set, 6 leading scientists specializing in Medicine in Lebanon were prominently evaluated.
To qualify for inclusion in this Medicine-specific ranking, a scientist’s D-index had to meet a minimum threshold of 70, and a majority of their tier publications had to be focused within the area of Medicine. Beyond citation metrics, awards and notable achievements in the medical field were also considered as part of the evaluation process.
The threshold for the D-index is dynamically calibrated in increments of 10, tailored according to the estimated total number of scholars within each discipline. This methodology ensures that the ranking robustly incorporates the top 1% of leading scholars in Medicine. Furthermore, candidates were required to have a proximity of 30% or less between their general H-index and the discipline-specific D-index to affirm domain-focused scholarly impact.
Verification and Methodological Rigor
Recognizing that raw bibliometric data alone may not fully capture the breadth and nuances of scholarly contributions, the ranking team conducted meticulous manual verification of all scientist profiles. This included cross-correlating publication records with a wide range of trustworthy sources to uphold accuracy and credibility.
While factors such as the number of papers published in prominent journals and conference proceedings do not directly determine placement in the Research.com ranking, they serve as valuable secondary indicators of a researcher’s contribution and influence within Medicine.
The final position of each scientist in the ranking is established exclusively using the D-index calculated from data sourced primarily through OpenAlex and CrossRef. To review detailed information on the methodology, we encourage readers to visit our methodology page.
Research.com’s Mission and Purpose
The primary mission driving the creation of this ranking is to motivate researchers, companies, and policymakers worldwide to monitor and better understand where leading experts are concentrating their efforts and innovations. By providing a transparent, rigorous, and credible framework, we aim to offer the global scientific community a reliable means of identifying the foremost authorities in specific areas of study. This extends across various countries and research institutions, fostering collaboration, informed decision-making, and recognition of scientific excellence.
