Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Total Citation Counts Rankings
Ranking Based On Selection :1
Endocrine Surgery and ONcology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,705
15,092
0.435
* Total Citation Counts Rankings
Ranking Based On Selection :2
colorectal cancer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,380
2,391
0.707
* Total Citation Counts Rankings
Ranking Based On Selection :3
Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,357
1,880
0.798
* Total Citation Counts Rankings
Ranking Based On Selection :4
Endocrine Surgery
Residency Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,647
915
0.556
* Total Citation Counts Rankings
Ranking Based On Selection :5
Transplant surgery
Xenotransplantation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,413
1,145
0.810
* Total Citation Counts Rankings
Ranking Based On Selection :6
Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
166
156
0.940
* Total Citation Counts Rankings
Ranking Based On Selection :7
Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31
31
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :8
General Surgery
Outcomes Research
Disparities
Cardiac Surgery Research
Thoracic Surgery Research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13
13
1.000
Herbert Chen
University of Alabama Birmingham
Birmingham, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,705
15,092
0.435
Endocrine Surgery and ONcology
Karin Hardiman
University of Alabama Birmingham
Birmingham, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,380
2,391
0.707
Daniel Chu
University of Alabama Birmingham
Birmingham, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,357
1,880
0.798
John R Porterfield
University of Alabama Birmingham
Birmingham, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,647
915
0.556
Endocrine Surgery
Residency Education
Joseph Matthew Ladowski
University of Alabama Birmingham
Birmingham, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,413
1,145
0.810
Transplant surgery
Xenotransplantation
C Haddon Mullins
University of Alabama Birmingham
Birmingham, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
166
156
0.940
Swatika Butey
University of Alabama Birmingham
Birmingham, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31
31
1.000
Shubho Chowdhuri
University of Alabama Birmingham
Birmingham, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13
13
1.000
General Surgery
Outcomes Research
Disparities
Cardiac Surgery Research
Thoracic Surgery Research