Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Art, Design and Architecture, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences and Social Sciences and their 256 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
* Total Citation Counts Rankings
World Rank
35,967
Country Rank
1,526
Institution Rank : 5
![](https://cdn.adscientificindex.com/logos/24500.png)
![Canada](/flags/ca.png)
![Michael J Schull](https://cdn.adscientificindex.com/pictures/a7/4699013.jpg)
Health services research
emergency medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,320
7,969
0.374
* Total Citation Counts Rankings
World Rank
391,396
Country Rank
127,136
Institution Rank : 87
![](https://cdn.adscientificindex.com/logos/16845.jpg)
![United States](/flags/us.png)
![Adam L Sharp](https://cdn.adscientificindex.com/pictures/49/4511291.jpg)
Health Services
Emergency Medicine & Web3
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,282
2,025
0.887
* Total Citation Counts Rankings
World Rank
400,965
Country Rank
129,706
Institution Rank : 4,165
![](https://cdn.adscientificindex.com/logos/3215.jpg)
![United States](/flags/us.png)
![Peter M Mullins](https://cdn.adscientificindex.com/pictures/0e/4513113.jpg)
Pain Medicine
Emergency Medicine
Health Policy
Health Care Quality
Addictive Behaviors
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,209
1,459
0.660
* Total Citation Counts Rankings
World Rank
403,311
Country Rank
130,345
Institution Rank : 348
![](https://cdn.adscientificindex.com/logos/6602.png)
![United States](/flags/us.png)
![David Sheridan](/user/assets/images/profile/no-profile-photo.png)
Emergency Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,192
1,417
0.646
* Total Citation Counts Rankings
World Rank
457,150
Country Rank
18,992
Institution Rank : 1,279
![](https://cdn.adscientificindex.com/logos/11421.jpg)
![Australia](/flags/au.png)
![Shizar Nahidi](https://cdn.adscientificindex.com/pictures/47/48056.jpg)
Health services research
Mental Health
Emergency medicine
Public health and community medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,844
1,756
0.952
* Total Citation Counts Rankings
World Rank
1,361,945
Country Rank
62,471
Institution Rank : 220
![](https://cdn.adscientificindex.com/logos/10909.jpg)
![United Kingdom](/flags/gb.png)
![Ayad M Al-Moslih](/pictures/14/5383148.jpg)
Health professions education
competency based education
emergency medicine education
disaster medicine education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
113
106
0.938
* Total Citation Counts Rankings
World Rank
1,548,338
Country Rank
41,263
Institution Rank : 1,549
![](https://cdn.adscientificindex.com/logos/5603.jpg)
![Canada](/flags/ca.png)
![X Catherine Tong](https://cdn.adscientificindex.com/pictures/21/5719605.jpg)
Health Professional Education
Faculty Development
Emergency Medicine
Family Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64
64
1.000
* Total Citation Counts Rankings
World Rank
1,634,255
Country Rank
367,182
Institution Rank : 244
![](https://cdn.adscientificindex.com/logos/9113.png)
![United States](/flags/us.png)
![Derek Sorensen](https://cdn.adscientificindex.com/pictures/f6/5619427.jpg)
Health Professions Education
Critical Care
Emergency Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49
40
0.816
* Total Citation Counts Rankings
World Ranking
35,967
Country Ranking
1,526
Institution Ranking
5
Michael J Schull
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,320
7,969
0.374
![](https://cdn.adscientificindex.com/logos/24500.png)
Health services research
emergency medicine
* Total Citation Counts Rankings
World Ranking
391,396
Country Ranking
127,136
Institution Ranking
87
Adam L Sharp
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,282
2,025
0.887
![](https://cdn.adscientificindex.com/logos/16845.jpg)
Health Services
Emergency Medicine & Web3
* Total Citation Counts Rankings
World Ranking
400,965
Country Ranking
129,706
Institution Ranking
4,165
Peter M Mullins
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,209
1,459
0.660
![](https://cdn.adscientificindex.com/logos/3215.jpg)
Pain Medicine
Emergency Medicine
Health Policy
Health Care Quality
Addictive Behaviors
* Total Citation Counts Rankings
World Ranking
403,311
Country Ranking
130,345
Institution Ranking
348
David Sheridan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,192
1,417
0.646
* Total Citation Counts Rankings
World Ranking
457,150
Country Ranking
18,992
Institution Ranking
1,279
Shizar Nahidi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,844
1,756
0.952
![](https://cdn.adscientificindex.com/logos/11421.jpg)
Health services research
Mental Health
Emergency medicine
Public health and community medicine
* Total Citation Counts Rankings
World Ranking
1,361,945
Country Ranking
62,471
Institution Ranking
220
Ayad M Al-Moslih
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
113
106
0.938
![](https://cdn.adscientificindex.com/logos/10909.jpg)
Health professions education
competency based education
emergency medicine education
disaster medicine education
* Total Citation Counts Rankings
World Ranking
1,548,338
Country Ranking
41,263
Institution Ranking
1,549
X Catherine Tong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64
64
1.000
![](https://cdn.adscientificindex.com/logos/5603.jpg)
Health Professional Education
Faculty Development
Emergency Medicine
Family Medicine
* Total Citation Counts Rankings
World Ranking
1,634,255
Country Ranking
367,182
Institution Ranking
244
Derek Sorensen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49
40
0.816
![](https://cdn.adscientificindex.com/logos/9113.png)
Health Professions Education
Critical Care
Emergency Medicine