Citation Rankings
Highly Cited Researchers
Medical and Health Sciences / Gastroenterology Highly Cited Researchers 58 Scientists Citation in Canada Rankings - 2025
The Citation Rankings (Highly Cited Researchers) list 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
Gastroenterology
Medicine
Evidence Based Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85,758
32,781
0.382
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Gastroenterology
Second interest
...
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,359
12,441
0.225
* Total Citation Counts Rankings
Ranking Based On Selection: 3
gastroenterology
epidemiology
inflammatory bowel disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,304
36,723
0.676
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Gastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,553
11,106
0.267
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Cirrhosis
portal hypertension
liver
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,142
20,916
0.534
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Gastroenterology
Intestinal diseases
Microbiome
Probiotics
Prebiotics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,060
7,544
0.243
* Total Citation Counts Rankings
Ranking Based On Selection: 7
gastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,291
13,573
0.480
* Total Citation Counts Rankings
Ranking Based On Selection: 8
lymphocyte signalling gastroenterology immunology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,738
5,154
0.193
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Gastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,472
7,092
0.278
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Intestinal Inflammation
Clinical gastroenterology
inflammatory bowel disease
C. dif colitis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,182
7,998
0.318
* Total Citation Counts Rankings
Ranking Based On Selection: 11
gastroenterology
microbiota-gut brain axis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,588
11,709
0.496
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Hepatology
liver transplantation
hepatocellular carcinoma
medical education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,200
7,825
0.352
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,839
14,513
0.732
* Total Citation Counts Rankings
Ranking Based On Selection: 14
gastrointestinal motility
interstitial cells of Cajal
autonomic nervous system
gastroenterology
neurogastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,791
4,121
0.219
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Gastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,187
8,618
0.474
* Total Citation Counts Rankings
Ranking Based On Selection: 16
liver disease
gastroenterology
neuroscience
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,779
7,509
0.422
* Total Citation Counts Rankings
Ranking Based On Selection: 17
gastroenteritis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,218
9,200
0.605
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Hepatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,179
2,104
0.139
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Hepatology & Liver Transplantation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,124
3,039
0.273
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Intensive Care Medicine
Hepatology
Liver Transplantation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,029
5,349
0.592
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Hepatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,720
5,260
0.603
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Gastroenterology and Hepatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,614
4,926
0.572
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Intestinal failure
Intestine transplantation
liver transplantation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,270
2,703
0.513
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Gastroenterology
Bariatric Medicine
Obesity
Internal Medicine
Metabolic Syndrome
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,545
2,307
0.508
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Advanced Therapeutic Endoscopy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,507
3,266
0.725
* Total Citation Counts Rankings
Rankings
4,238
164
28
Ranking Based On Selection: 1
Moayyedi Paul
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85,758
32,781
0.382
Gastroenterology
Medicine
Evidence Based Medicine
* Total Citation Counts Rankings
Rankings
8,744
334
44
Ranking Based On Selection: 2
Richard Hunt
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,359
12,441
0.225
Gastroenterology
Second interest
...
* Total Citation Counts Rankings
Rankings
9,022
349
13
Ranking Based On Selection: 3
Gilaad G Kaplan
University of Calgary
Calgary, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,304
36,723
0.676
gastroenterology
epidemiology
inflammatory bowel disease
* Total Citation Counts Rankings
Rankings
13,784
544
59
Ranking Based On Selection: 4
Stephen M Collins
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,553
11,106
0.267
* Total Citation Counts Rankings
Rankings
15,198
608
35
Ranking Based On Selection: 5
Juan G Abraldes
University of Alberta
Edmonton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,142
20,916
0.534
Cirrhosis
portal hypertension
liver
* Total Citation Counts Rankings
Rankings
21,766
897
22
Ranking Based On Selection: 6
Philip M Sherman
Hospital for Sick Children
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,060
7,544
0.243
Gastroenterology
Intestinal diseases
Microbiome
Probiotics
Prebiotics
* Total Citation Counts Rankings
Rankings
25,137
1,032
86
Ranking Based On Selection: 7
Elena F Verdu
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,291
13,573
0.480
* Total Citation Counts Rankings
Rankings
27,377
1,125
128
Ranking Based On Selection: 8
Dermot Kelleher
University of British Columbia
Vancouver, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,738
5,154
0.193
lymphocyte signalling gastroenterology immunology
* Total Citation Counts Rankings
Rankings
29,397
1,216
96
Ranking Based On Selection: 9
David Armstrong
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,472
7,092
0.278
* Total Citation Counts Rankings
Rankings
29,950
1,247
56
Ranking Based On Selection: 10
Paul L Beck
University of Calgary
Calgary, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,182
7,998
0.318
Intestinal Inflammation
Clinical gastroenterology
inflammatory bowel disease
C. dif colitis
* Total Citation Counts Rankings
Rankings
32,913
1,386
106
Ranking Based On Selection: 11
Bercik Premysl
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,588
11,709
0.496
gastroenterology
microbiota-gut brain axis
* Total Citation Counts Rankings
Rankings
35,828
1,529
73
Ranking Based On Selection: 12
Kelly Burak
University of Calgary
Calgary, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,200
7,825
0.352
Hepatology
liver transplantation
hepatocellular carcinoma
medical education
* Total Citation Counts Rankings
Rankings
41,944
1,826
93
Ranking Based On Selection: 13
Mohammad Bashashati
University of Calgary
Calgary, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,839
14,513
0.732
* Total Citation Counts Rankings
Rankings
45,152
1,970
140
Ranking Based On Selection: 14
Jan D Huizinga
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,791
4,121
0.219
gastrointestinal motility
interstitial cells of Cajal
autonomic nervous system
gastroenterology
neurogastroenterology
* Total Citation Counts Rankings
Rankings
47,256
2,065
144
Ranking Based On Selection: 15
Grigorios I Leontiadis
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,187
8,618
0.474
* Total Citation Counts Rankings
Rankings
48,709
2,121
107
Ranking Based On Selection: 16
Mark Gordon Swain
University of Calgary
Calgary, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,779
7,509
0.422
liver disease
gastroenterology
neuroscience
* Total Citation Counts Rankings
Rankings
60,009
2,643
122
Ranking Based On Selection: 17
Stephen B Freedman
University of Calgary
Calgary, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,218
9,200
0.605
* Total Citation Counts Rankings
Rankings
60,194
2,654
36
Ranking Based On Selection: 18
Gerald Minuk
University of Manitoba
Winnipeg, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,179
2,104
0.139
* Total Citation Counts Rankings
Rankings
88,851
3,958
93
Ranking Based On Selection: 19
Kevork M Peltekian
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,124
3,039
0.273
Hepatology & Liver Transplantation
* Total Citation Counts Rankings
Rankings
112,947
5,031
327
Ranking Based On Selection: 20
Constantine Karvellas
University of Alberta
Edmonton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,029
5,349
0.592
Intensive Care Medicine
Hepatology
Liver Transplantation
* Total Citation Counts Rankings
Rankings
117,484
5,212
105
Ranking Based On Selection: 21
Binita Kamath
Hospital for Sick Children
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,720
5,260
0.603
* Total Citation Counts Rankings
Rankings
119,087
5,288
238
Ranking Based On Selection: 22
Abdel Aziz Shaheen
University of Calgary
Calgary, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,614
4,926
0.572
Gastroenterology and Hepatology
* Total Citation Counts Rankings
Rankings
198,478
8,505
143
Ranking Based On Selection: 23
Yaron Avitzur
Hospital for Sick Children
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,270
2,703
0.513
Intestinal failure
Intestine transplantation
liver transplantation
* Total Citation Counts Rankings
Rankings
228,597
9,742
633
Ranking Based On Selection: 24
Christian F Rueda Clausen
University of Alberta
Edmonton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,545
2,307
0.508
Gastroenterology
Bariatric Medicine
Obesity
Internal Medicine
Metabolic Syndrome
* Total Citation Counts Rankings
Rankings
230,420
9,823
810
Ranking Based On Selection: 25
Yen I Chen
McGill University
Montréal, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,507
3,266
0.725
Advanced Therapeutic Endoscopy