Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Total Citation Rankings
Rankings

8,738
World Rank

328
Country Rank

13
University
Ranking Based On Selection:
1
Medical and Health Sciences / Gastroenterology
gastroenterology | epidemiology | inflammatory bowel diseas
gastroenterology | epidemiology | inflammatory bowel diseas
Citation Metrics
-
Total57,395
-
Last 6 Years39,812
-
Last 6 Years / Total0.694
* Total Citation Rankings
Rankings

30,700
World Rank

1,258
Country Rank

57
University
Ranking Based On Selection:
2
Medical and Health Sciences / Gastroenterology
Intestinal Inflammation | Clinical gastroenterology | inflammatory bowel disease | C. dif coliti
Intestinal Inflammation | Clinical gastroenterology | inflammatory bowel disease | C. dif coliti
Citation Metrics
-
Total25,669
-
Last 6 Years8,527
-
Last 6 Years / Total0.332
* Total Citation Rankings
Rankings

36,550
World Rank

1,544
Country Rank

76
University
Ranking Based On Selection:
3
Medical and Health Sciences / Gastroenterology
Hepatology | liver transplantation | hepatocellular carcinoma | medical educatio
Hepatology | liver transplantation | hepatocellular carcinoma | medical educatio
Citation Metrics
-
Total22,695
-
Last 6 Years8,248
-
Last 6 Years / Total0.363
* Total Citation Rankings
Rankings

42,620
World Rank

1,830
Country Rank

95
University
Ranking Based On Selection:
4
Citation Metrics
-
Total20,366
-
Last 6 Years15,031
-
Last 6 Years / Total0.738
* Total Citation Rankings
Rankings

47,917
World Rank

2,077
Country Rank

107
University
Ranking Based On Selection:
5
Citation Metrics
-
Total18,695
-
Last 6 Years8,411
-
Last 6 Years / Total0.450
* Total Citation Rankings
Rankings

56,816
World Rank

2,470
Country Rank

117
University
Ranking Based On Selection:
6
Citation Metrics
-
Total16,465
-
Last 6 Years10,244
-
Last 6 Years / Total0.622
* Total Citation Rankings
Rankings

114,749
World Rank

5,071
Country Rank

230
University
Ranking Based On Selection:
7
Citation Metrics
-
Total9,278
-
Last 6 Years5,581
-
Last 6 Years / Total0.602
* Total Citation Rankings
Rankings

235,517
World Rank

9,963
Country Rank

447
University
Ranking Based On Selection:
8
Citation Metrics
-
Total4,611
-
Last 6 Years1,195
-
Last 6 Years / Total0.259
* Total Citation Rankings
Rankings

1,132,097
World Rank

35,723
Country Rank

1,628
University
Ranking Based On Selection:
9
Citation Metrics
-
Total331
-
Last 6 Years254
-
Last 6 Years / Total0.767
* Total Citation Rankings
Rankings

1,133,000
World Rank

35,748
Country Rank

1,632
University
Ranking Based On Selection:
10
Citation Metrics
-
Total330
-
Last 6 Years317
-
Last 6 Years / Total0.961