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)
![Shailendra Singh](https://cdn.adscientificindex.com/pictures/f2/859973.jpg)
Advanced Endoscopy
Gastroenterology and Hepatology
Bariatric Endoscopy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,258
6,047
0.732
* Last 6 Years Citation Counts Rankings
![Hamid Ullah](https://cdn.adscientificindex.com/pictures/38/5230015.jpg)
Gastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
97
57
0.588
* Last 6 Years Citation Counts Rankings
![Sarah Singh](/user/assets/images/profile/no-profile-photo.png)
Gastroenterology
Health Equity
Preventative Care
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30
30
1.000
* Last 6 Years Citation Counts Rankings
![Mohamed Zitun](/user/assets/images/profile/no-profile-photo.png)
Gastroneterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18
18
1.000
* Last 6 Years Citation Counts Rankings
![Vishnu Vardhan Reddy Naravadi](https://cdn.adscientificindex.com/pictures/66/5230292.jpg)
Gastroenterology and Hepatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15
9
0.600
Shailendra Singh
West Virginia University
Morgantown, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,258
6,047
0.732
Advanced Endoscopy
Gastroenterology and Hepatology
Bariatric Endoscopy
Hamid Ullah
West Virginia University
Morgantown, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
97
57
0.588
Sarah Singh
West Virginia University
Morgantown, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30
30
1.000
Gastroenterology
Health Equity
Preventative Care
Mohamed Zitun
West Virginia University
Morgantown, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18
18
1.000
Vishnu Vardhan Reddy Naravadi
West Virginia University
Morgantown, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15
9
0.600
Gastroenterology and Hepatology