Citation Rankings
Highly Cited Researchers

University of Oxford Highly Cited Researchers CitationMedical and Health Sciences / General Surgery Rankings 2025

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.

* Total Citation Counts Rankings
Ranking Based On Selection :1
United Kingdom
Freddie Hamdy
Prostate cancer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,158
21,194
0.459
* Total Citation Counts Rankings
Ranking Based On Selection :2
United Kingdom
Neil Mortensen
surgery and colorectal disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,285
7,806
0.276
* Total Citation Counts Rankings
Ranking Based On Selection :3
United Kingdom
Peter Mcculloch
clinical trials methodology
surgery
patient safety
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,398
13,776
0.522
* Total Citation Counts Rankings
Ranking Based On Selection :4
United Kingdom
Peter J Friend
Normothermic Organ Preservation
Solid Organ Transplantation
Hepatobiliary Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,507
8,465
0.376
* Total Citation Counts Rankings
Ranking Based On Selection :5
United Kingdom
Rachel Kerr Nee Midgley
colorectal cancer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,009
9,355
0.623
* Total Citation Counts Rankings
Ranking Based On Selection :6
United Kingdom
Alex Gordon Weeks
hepatobiliary surgery
liver metastasis
pancreatic cancer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,017
2,329
0.772
* Total Citation Counts Rankings
Ranking Based On Selection :7
United Kingdom
Dedrick Kok Hong Chan
Colorectal Surgery
Surgical Oncology
Tumour Evolution
Tumour Heterogeneity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,769
1,428
0.807
* Total Citation Counts Rankings
Ranking Based On Selection :8
United Kingdom
John Mason
General Surgery
Cancer Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,413
927
0.656
* Total Citation Counts Rankings
Ranking Based On Selection :9
United Kingdom
Anthony Simon Bates
Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,065
720
0.676
* Total Citation Counts Rankings
Ranking Based On Selection :10
United Kingdom
Maria Kaisar
Kidney Transplantation
Degradomics
Proteomics
NHS Blood and Transplant
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
898
453
0.504
* Total Citation Counts Rankings
Rankings
11,272
United Kingdom
979
141
Ranking Based On Selection: 1
Freddie Hamdy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,158
21,194
0.459
* Total Citation Counts Rankings
Rankings
24,457
United Kingdom
2,132
271
Ranking Based On Selection: 2
Neil Mortensen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,285
7,806
0.276
* Total Citation Counts Rankings
Rankings
27,095
United Kingdom
2,341
287
Ranking Based On Selection: 3
Peter Mcculloch
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,398
13,776
0.522
clinical trials methodology
surgery
patient safety
* Total Citation Counts Rankings
Rankings
34,189
United Kingdom
2,991
359
Ranking Based On Selection: 4
Peter J Friend
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,507
8,465
0.376
Normothermic Organ Preservation
Solid Organ Transplantation
Hepatobiliary Surgery
* Total Citation Counts Rankings
Rankings
59,500
United Kingdom
5,084
544
Ranking Based On Selection: 5
Rachel Kerr Nee Midgley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,009
9,355
0.623
* Total Citation Counts Rankings
Rankings
320,688
United Kingdom
22,752
1,645
Ranking Based On Selection: 6
Alex Gordon Weeks
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,017
2,329
0.772
hepatobiliary surgery
liver metastasis
pancreatic cancer
* Total Citation Counts Rankings
Rankings
479,261
United Kingdom
31,262
2,143
Ranking Based On Selection: 7
Dedrick Kok Hong Chan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,769
1,428
0.807
Colorectal Surgery
Surgical Oncology
Tumour Evolution
Tumour Heterogeneity
* Total Citation Counts Rankings
Rankings
555,399
United Kingdom
35,175
2,376
Ranking Based On Selection: 8
John Mason
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,413
927
0.656
* Total Citation Counts Rankings
Rankings
655,774
United Kingdom
39,944
2,639
Ranking Based On Selection: 9
Anthony Simon Bates
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,065
720
0.676
* Total Citation Counts Rankings
Rankings
717,430
United Kingdom
42,604
2,798
Ranking Based On Selection: 10
Maria Kaisar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
898
453
0.504
Kidney Transplantation
Degradomics
Proteomics
NHS Blood and Transplant