Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Architecture and Design, 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)
![Ian Hambleton](https://cdn.adscientificindex.com/pictures/41/605535.jpg)
Biostatistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,759
24,232
0.697
![Theodoros N Sergentanis](https://cdn.adscientificindex.com/pictures/8a/1847275.jpg)
Epidemiology
Meta-analysis
Systematic reviews
Research methodology
Biostatistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,643
8,882
0.607
* Last 6 Years Citation Counts Rankings
![Marie Diener West](https://cdn.adscientificindex.com/pictures/87/1391403.jpg)
Biostatistics
Statistical Education
Epidemiology
Clinical Trials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,413
7,662
0.301
![Hafiz TA Khan](https://cdn.adscientificindex.com/pictures/1b/1070319.jpg)
Public Health & Biostatistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,195
3,311
0.637
* Last 6 Years Citation Counts Rankings
![Samantha R Seals](/user/assets/images/profile/no-profile-photo.png)
Biostatistics
Statistics
Cardiovascular Disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,799
1,428
0.794
* Last 6 Years Citation Counts Rankings
![Stacie Metz](https://cdn.adscientificindex.com/pictures/e3/831467.jpg)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,009
1,029
0.512
![Donald Simeon](https://cdn.adscientificindex.com/pictures/0a/647019.jpg)
Health Policy and Systems Research
Public Health
Nutrition
Biostatistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,397
824
0.187
* Last 6 Years Citation Counts Rankings
![Giannopapas Vasileios](https://cdn.adscientificindex.com/pictures/ac/5332532.jpg)
Physical Therapy
Neurorehabilitation
Sexual Dysfunction
Neurogenic Bladder
Biostatistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62
62
1.000
* Last 6 Years Citation Counts Rankings
![Kesheng Wang](/user/assets/images/profile/no-profile-photo.png)
Biostatistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6
4
0.667
* Last 6 Years Citation Counts Rankings
![Nazneen Sultana](/user/assets/images/profile/no-profile-photo.png)
Biostatistics
Public Health
Epidemiology
Statistical Modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Ian Hambleton
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,759
24,232
0.697
Theodoros N Sergentanis
University of West Attica
Egaleo, Greece
![Greece](/flags/gr.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,643
8,882
0.607
Epidemiology
Meta-analysis
Systematic reviews
Research methodology
Biostatistics
Marie Diener West
Johns Hopkins University
Baltimore, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,413
7,662
0.301
Biostatistics
Statistical Education
Epidemiology
Clinical Trials
Hafiz TA Khan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,195
3,311
0.637
Public Health & Biostatistics
Samantha R Seals
University of West Florida
Pensacola, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,799
1,428
0.794
Biostatistics
Statistics
Cardiovascular Disease
Stacie Metz
West Chester University of Pennsylvania
West Chester, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,009
1,029
0.512
Donald Simeon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,397
824
0.187
Health Policy and Systems Research
Public Health
Nutrition
Biostatistics
Giannopapas Vasileios
University of West Attica
Egaleo, Greece
![Greece](/flags/gr.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62
62
1.000
Physical Therapy
Neurorehabilitation
Sexual Dysfunction
Neurogenic Bladder
Biostatistics
Kesheng Wang
West Virginia University
Morgantown, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6
4
0.667
Nazneen Sultana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Biostatistics
Public Health
Epidemiology
Statistical Modeling