The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :1
Hepatology
Transplantation
Transplant Immunology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,794
1,023
0.570
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Pediatric inflammatory bowel disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66
66
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Pediatric GI
EoE
Aero-digestive disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91
26
0.286
Ryan Fischer
Children's Mercy Hospitals and Clinics
Kansas City, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,794
1,023
0.570
Hepatology
Transplantation
Transplant Immunology
* Last 6 Years Citation Counts Rankings
Kathryn Clarkston
Children's Mercy Hospitals and Clinics
Kansas City, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66
66
1.000
Pediatric inflammatory bowel disease
* Last 6 Years Citation Counts Rankings
Fernando Zapata
Children's Mercy Hospitals and Clinics
Kansas City, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91
26
0.286
Pediatric GI
EoE
Aero-digestive disease