World Scientist and University Rankings 2025
Canada Others 22.787 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 (870.057) 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: 26
inflammatory bowel disease
epidemiology
gut microbiome
colon cancer screening
gastrointestinal endoscopy
Metrics
H-Index
i10 Index
Citation Counts
131
580
80,730
* Total H IndexRankings
Ranking Based On Selection: 27
Pulmonary pathology and physiology
Metrics
H-Index
i10 Index
Citation Counts
131
491
70,125
* Total H IndexRankings
Ranking Based On Selection: 28
Metrics
H-Index
i10 Index
Citation Counts
130
453
91,614
* Total H IndexRankings
Ranking Based On Selection: 29
Stroke
dementia
Metrics
H-Index
i10 Index
Citation Counts
129
506
71,368
* Total H IndexRankings
Ranking Based On Selection: 30
Respirology
Asthma
Allergy
Metrics
H-Index
i10 Index
Citation Counts
129
488
73,228
* Total H IndexRankings
Ranking Based On Selection: 31
perfectionism
personality
health
mattering
Metrics
H-Index
i10 Index
Citation Counts
127
332
59,105
* Total H IndexRankings
Ranking Based On Selection: 32
Metrics
H-Index
i10 Index
Citation Counts
126
564
115,166
* Total H IndexRankings
Ranking Based On Selection: 33
Metrics
H-Index
i10 Index
Citation Counts
126
429
377,255
* Total H IndexRankings
Ranking Based On Selection: 34
Vascular medicine
ethnicity
population health
Metrics
H-Index
i10 Index
Citation Counts
124
416
172,999
* Total H IndexRankings
Ranking Based On Selection: 35
Research methods
quality of life
statistics
Metrics
H-Index
i10 Index
Citation Counts
123
443
87,795
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!
* Total H IndexRankings
Ranking Based On Selection: 36
health equity
systematic reviews
guidelines
Metrics
H-Index
i10 Index
Citation Counts
122
353
259,056
* Total H IndexRankings
Ranking Based On Selection: 37
root biology
plant abiotic stress
mineral nutrition
membrane transport
root phenotyping
Metrics
H-Index
i10 Index
Citation Counts
122
257
50,597
* Total H IndexRankings
Ranking Based On Selection: 38
Neuro-oncology
Metrics
H-Index
i10 Index
Citation Counts
121
293
91,310
* Total H IndexRankings
Ranking Based On Selection: 39
Sleep
Insomnia
Cognitive Behavior Therapy
Metrics
H-Index
i10 Index
Citation Counts
118
337
74,263
* Total H IndexRankings
Ranking Based On Selection: 40
Obesity
Metrics
H-Index
i10 Index
Citation Counts
116
502
58,944
* Total H IndexRankings
Ranking Based On Selection: 41
Metrics
H-Index
i10 Index
Citation Counts
116
380
53,757
* Total H IndexRankings
Ranking Based On Selection: 42
medical imaging
magnetic resonance imaging
quantitative MRI
functional MRI
fMRI
Metrics
H-Index
i10 Index
Citation Counts
115
365
57,372
* Total H IndexRankings
Ranking Based On Selection: 43
Metrics
H-Index
i10 Index
Citation Counts
114
305
56,373
* Total H IndexRankings
Ranking Based On Selection: 44
Metrics
H-Index
i10 Index
Citation Counts
113
369
93,261
* Total H IndexRankings
Ranking Based On Selection: 45
perfectionism
perfectionist
perfectionists
perfection
perfectionistic
Metrics
H-Index
i10 Index
Citation Counts
113
238
47,718
* Total H IndexRankings
Ranking Based On Selection: 46
Metrics
H-Index
i10 Index
Citation Counts
112
208
50,647
* Total H IndexRankings
Ranking Based On Selection: 47
Metrics
H-Index
i10 Index
Citation Counts
112
423
50,571
* Total H IndexRankings
Ranking Based On Selection: 48
Metrics
H-Index
i10 Index
Citation Counts
111
287
100,889
* Total H IndexRankings
Ranking Based On Selection: 49
Occupational Therapy
Childhood Disability
Metrics
H-Index
i10 Index
Citation Counts
111
322
48,120
* Total H IndexRankings
Ranking Based On Selection: 50
safety and risk engineering
Metrics
H-Index
i10 Index
Citation Counts
110
698
51,525
Charles N Bernstein
University of Manitoba
Winnipeg, Canada
Metrics
H-Index
i10-Index
Citation Counts
131
580
80,730
inflammatory bowel disease
epidemiology
gut microbiome
colon cancer screening
gastrointestinal endoscopy
James C Hogg
University of British Columbia
Vancouver, Canada
Metrics
H-Index
i10-Index
Citation Counts
131
491
70,125
Samy Suissa
McGill University
Montréal, Canada
Metrics
H-Index
i10-Index
Citation Counts
130
453
91,614
Eric E Smith
University of Calgary
Calgary, Canada
Metrics
H-Index
i10-Index
Citation Counts
129
506
71,368
Paul O Byrne
McMaster University
Hamilton, Canada
Metrics
H-Index
i10-Index
Citation Counts
129
488
73,228
Gordon L Flett
York University
Toronto, Canada
Metrics
H-Index
i10-Index
Citation Counts
127
332
59,105
Sharon Straus
University of Toronto
Toronto, Canada
Metrics
H-Index
i10-Index
Citation Counts
126
564
115,166
PJ Devereaux
McMaster University
Hamilton, Canada
Metrics
H-Index
i10-Index
Citation Counts
126
429
377,255
Anand S
McMaster University
Hamilton, Canada
Metrics
H-Index
i10-Index
Citation Counts
124
416
172,999
David Streiner
McMaster University
Hamilton, Canada
Metrics
H-Index
i10-Index
Citation Counts
123
443
87,795
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!
Vivian Welch
Université d'Ottawa
Ottawa, Canada
Metrics
H-Index
i10-Index
Citation Counts
122
353
259,056
Leon Kochian
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
122
257
50,597
root biology
plant abiotic stress
mineral nutrition
membrane transport
root phenotyping
Tom Mikkelsen
Metrics
H-Index
i10-Index
Citation Counts
121
293
91,310
Charles M Morin
Université Laval
Québec, Canada
Metrics
H-Index
i10-Index
Citation Counts
118
337
74,263
Arya M Sharma
University of Alberta
Edmonton, Canada
Metrics
H-Index
i10-Index
Citation Counts
116
502
58,944
Louis Perusse
Université Laval
Québec, Canada
Metrics
H-Index
i10-Index
Citation Counts
116
380
53,757
Bruce Pike
University of Calgary
Calgary, Canada
Metrics
H-Index
i10-Index
Citation Counts
115
365
57,372
medical imaging
magnetic resonance imaging
quantitative MRI
functional MRI
fMRI
Robert Josse
University of Toronto
Toronto, Canada
Metrics
H-Index
i10-Index
Citation Counts
114
305
56,373
Russell Belk
York University
Toronto, Canada
Metrics
H-Index
i10-Index
Citation Counts
113
369
93,261
Hewitt Paul
University of British Columbia
Vancouver, Canada
Metrics
H-Index
i10-Index
Citation Counts
113
238
47,718
perfectionism
perfectionist
perfectionists
perfection
perfectionistic
Curtis Chisholm
Lakehead University
Thunder Bay, Canada
Metrics
H-Index
i10-Index
Citation Counts
112
208
50,647
Ian Q Whishaw
University of Lethbridge
Lethbridge, Canada
Metrics
H-Index
i10-Index
Citation Counts
112
423
50,571
Harald Pfeiffer
University of Toronto
Toronto, Canada
Metrics
H-Index
i10-Index
Citation Counts
111
287
100,889
Mary Law
McMaster University
Hamilton, Canada
Metrics
H-Index
i10-Index
Citation Counts
111
322
48,120
Faisal Khan
Memorial University of Newfoundland
St John’s, Canada
Metrics
H-Index
i10-Index
Citation Counts
110
698
51,525