World Scientist and University Rankings 2025
Canada Medical and Health Sciences / Gastroenterology 58 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Feb 03, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (870.053) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
Gastroenterology
Medicine
Evidence Based Medicine
Metrics
H-Index
i10 Index
Citation Counts
143
380
85,758
* Total H IndexRankings
Ranking Based On Selection: 2
Cirrhosis
portal hypertension
liver
Metrics
H-Index
i10 Index
Citation Counts
103
257
39,142
* Total H IndexRankings
Ranking Based On Selection: 3
Gastroenterology
Metrics
H-Index
i10 Index
Citation Counts
103
267
41,553
* Total H IndexRankings
Ranking Based On Selection: 4
Gastroenterology
Second interest
...
Metrics
H-Index
i10 Index
Citation Counts
97
364
55,359
* Total H IndexRankings
Ranking Based On Selection: 5
gastroenterology
epidemiology
inflammatory bowel disease
Metrics
H-Index
i10 Index
Citation Counts
96
314
54,304
* Total H IndexRankings
Ranking Based On Selection: 6
Gastroenterology
Intestinal diseases
Microbiome
Probiotics
Prebiotics
Metrics
H-Index
i10 Index
Citation Counts
89
287
31,060
* Total H IndexRankings
Ranking Based On Selection: 7
gastroenterology
Metrics
H-Index
i10 Index
Citation Counts
85
179
28,291
* Total H IndexRankings
Ranking Based On Selection: 8
lymphocyte signalling gastroenterology immunology
Metrics
H-Index
i10 Index
Citation Counts
84
262
26,738
* Total H IndexRankings
Ranking Based On Selection: 9
Intestinal Inflammation
Clinical gastroenterology
inflammatory bowel disease
C. dif colitis
Metrics
H-Index
i10 Index
Citation Counts
76
184
25,182
* Total H IndexRankings
Ranking Based On Selection: 10
liver disease
gastroenterology
neuroscience
Metrics
H-Index
i10 Index
Citation Counts
71
203
17,779
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* Total H IndexRankings
Ranking Based On Selection: 11
Gastroenterology
Metrics
H-Index
i10 Index
Citation Counts
71
256
25,472
* Total H IndexRankings
Ranking Based On Selection: 12
gastroenterology
microbiota-gut brain axis
Metrics
H-Index
i10 Index
Citation Counts
70
132
23,588
* Total H IndexRankings
Ranking Based On Selection: 13
gastrointestinal motility
interstitial cells of Cajal
autonomic nervous system
gastroenterology
neurogastroenterology
Metrics
H-Index
i10 Index
Citation Counts
66
201
18,791
* Total H IndexRankings
Ranking Based On Selection: 14
Hepatology
Metrics
H-Index
i10 Index
Citation Counts
56
227
15,179
* Total H IndexRankings
Ranking Based On Selection: 15
Hepatology
Metrics
H-Index
i10 Index
Citation Counts
55
120
8,720
* Total H IndexRankings
Ranking Based On Selection: 16
Gastroenterology
Metrics
H-Index
i10 Index
Citation Counts
53
90
18,187
* Total H IndexRankings
Ranking Based On Selection: 17
gastroenteritis
Metrics
H-Index
i10 Index
Citation Counts
50
157
15,218
* Total H IndexRankings
Ranking Based On Selection: 18
Intensive Care Medicine
Hepatology
Liver Transplantation
Metrics
H-Index
i10 Index
Citation Counts
49
115
9,029
* Total H IndexRankings
Ranking Based On Selection: 19
Hepatology
liver transplantation
hepatocellular carcinoma
medical education
Metrics
H-Index
i10 Index
Citation Counts
44
86
22,200
* Total H IndexRankings
Ranking Based On Selection: 20
Gastroenterology and Hepatology
Metrics
H-Index
i10 Index
Citation Counts
43
84
8,614
* Total H IndexRankings
Ranking Based On Selection: 21
Hepatology & Liver Transplantation
Metrics
H-Index
i10 Index
Citation Counts
41
73
11,124
* Total H IndexRankings
Ranking Based On Selection: 22
Metrics
H-Index
i10 Index
Citation Counts
40
76
19,839
* Total H IndexRankings
Ranking Based On Selection: 23
Intestinal failure
Intestine transplantation
liver transplantation
Metrics
H-Index
i10 Index
Citation Counts
39
98
5,270
* Total H IndexRankings
Ranking Based On Selection: 24
Advanced Therapeutic Endoscopy
Metrics
H-Index
i10 Index
Citation Counts
36
63
4,507
* Total H IndexRankings
Ranking Based On Selection: 25
Gastroenterology
Bariatric Medicine
Obesity
Internal Medicine
Metabolic Syndrome
Metrics
H-Index
i10 Index
Citation Counts
33
50
4,545
Moayyedi Paul
McMaster University
Hamilton, Canada
Metrics
H-Index
i10-Index
Citation Counts
143
380
85,758
Gastroenterology
Medicine
Evidence Based Medicine
Juan G Abraldes
University of Alberta
Edmonton, Canada
Metrics
H-Index
i10-Index
Citation Counts
103
257
39,142
Cirrhosis
portal hypertension
liver
Stephen M Collins
McMaster University
Hamilton, Canada
Metrics
H-Index
i10-Index
Citation Counts
103
267
41,553
Richard Hunt
McMaster University
Hamilton, Canada
Metrics
H-Index
i10-Index
Citation Counts
97
364
55,359
Gastroenterology
Second interest
...
Gilaad G Kaplan
University of Calgary
Calgary, Canada
Metrics
H-Index
i10-Index
Citation Counts
96
314
54,304
gastroenterology
epidemiology
inflammatory bowel disease
Philip M Sherman
Hospital for Sick Children
Toronto, Canada
Metrics
H-Index
i10-Index
Citation Counts
89
287
31,060
Gastroenterology
Intestinal diseases
Microbiome
Probiotics
Prebiotics
Elena F Verdu
McMaster University
Hamilton, Canada
Metrics
H-Index
i10-Index
Citation Counts
85
179
28,291
Dermot Kelleher
University of British Columbia
Vancouver, Canada
Metrics
H-Index
i10-Index
Citation Counts
84
262
26,738
lymphocyte signalling gastroenterology immunology
Paul L Beck
University of Calgary
Calgary, Canada
Metrics
H-Index
i10-Index
Citation Counts
76
184
25,182
Intestinal Inflammation
Clinical gastroenterology
inflammatory bowel disease
C. dif colitis
Mark Gordon Swain
University of Calgary
Calgary, Canada
Metrics
H-Index
i10-Index
Citation Counts
71
203
17,779
liver disease
gastroenterology
neuroscience
Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast!
David Armstrong
McMaster University
Hamilton, Canada
Metrics
H-Index
i10-Index
Citation Counts
71
256
25,472
Bercik Premysl
McMaster University
Hamilton, Canada
Metrics
H-Index
i10-Index
Citation Counts
70
132
23,588
gastroenterology
microbiota-gut brain axis
Jan D Huizinga
McMaster University
Hamilton, Canada
Metrics
H-Index
i10-Index
Citation Counts
66
201
18,791
gastrointestinal motility
interstitial cells of Cajal
autonomic nervous system
gastroenterology
neurogastroenterology
Gerald Minuk
University of Manitoba
Winnipeg, Canada
Metrics
H-Index
i10-Index
Citation Counts
56
227
15,179
Binita Kamath
Hospital for Sick Children
Toronto, Canada
Metrics
H-Index
i10-Index
Citation Counts
55
120
8,720
Grigorios I Leontiadis
McMaster University
Hamilton, Canada
Metrics
H-Index
i10-Index
Citation Counts
53
90
18,187
Stephen B Freedman
University of Calgary
Calgary, Canada
Metrics
H-Index
i10-Index
Citation Counts
50
157
15,218
Constantine Karvellas
University of Alberta
Edmonton, Canada
Metrics
H-Index
i10-Index
Citation Counts
49
115
9,029
Intensive Care Medicine
Hepatology
Liver Transplantation
Kelly Burak
University of Calgary
Calgary, Canada
Metrics
H-Index
i10-Index
Citation Counts
44
86
22,200
Hepatology
liver transplantation
hepatocellular carcinoma
medical education
Abdel Aziz Shaheen
University of Calgary
Calgary, Canada
Metrics
H-Index
i10-Index
Citation Counts
43
84
8,614
Gastroenterology and Hepatology
Kevork M Peltekian
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
41
73
11,124
Hepatology & Liver Transplantation
Mohammad Bashashati
University of Calgary
Calgary, Canada
Metrics
H-Index
i10-Index
Citation Counts
40
76
19,839
Yaron Avitzur
Hospital for Sick Children
Toronto, Canada
Metrics
H-Index
i10-Index
Citation Counts
39
98
5,270
Intestinal failure
Intestine transplantation
liver transplantation
Advanced Therapeutic Endoscopy
Christian F Rueda Clausen
University of Alberta
Edmonton, Canada
Metrics
H-Index
i10-Index
Citation Counts
33
50
4,545
Gastroenterology
Bariatric Medicine
Obesity
Internal Medicine
Metabolic Syndrome