This ranking is based on bibliometric information available in the Scopus database and includes academics and other experts that contribute to advancing knowledge in a particular scientific field. The ranking standardizes the number of citations and the h-index through a composite indicator (c score) that calculates in an integrated manner the scientific impact of each researcher in terms of citations of their findings, the main authorship of the papers and the significance of the same for other researchers.

The ranking provides not only global career metrics but also metrics corresponding to the last year of citations, which allows incorporating emerging researchers in the different scientific fields.

The career-long contributions of Vicente Arroyo who serves as Director of EF CLIF, Rajiv Jalan (University College London, UK), Richard Moreau, Joan Clària (University of Barcelona, Spain) and Jonel Trebicka (University of Münster, Germany) continue to influence the field of Clinical Medicine, subfield Gastroenterology and Hepatology; and together with Javier Fernández (University of Barcelona, Spain), they all are also included in the list of single recent year impact which provides information on citations received during the calendar year 2022.