On AD Scientific Index, you can explore the individual achievements of scientists in detail and evaluate their academic productivity based on total and recent H-index, i10 index, and citation counts. With Premium Membership, gain access to extended analyses and detailed data to assess and enhance your academic performance more effectively.
* Total H Index Rankings
Ranking Based
On Selection: 1
![Stein Hubert J](/user/assets/images/profile/no-profile-photo.png)
Surgery
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
97
34
0.351
* Total H Index Rankings
Ranking Based
On Selection: 2
![Ionut Negoi](https://cdn.adscientificindex.com/pictures/0c/4318289.jpg)
Medicine
Surgery
Colorectal Surgery
Pancreatic Surgery
Global Surgery.
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
88
84
0.955
* Total H Index Rankings
Ranking Based
On Selection: 3
![Christos Dervenis](https://cdn.adscientificindex.com/pictures/3d/1573474.jpg)
HPB Surgery
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
81
61
0.753
* Total H Index Rankings
Ranking Based
On Selection: 4
![Mehmet Haberal](/user/assets/images/profile/no-profile-photo.png)
Sugery
Transplantation
Burn
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
64
28
0.438
* Total H Index Rankings
Ranking Based
On Selection: 5
![Dietmar Öfner](https://cdn.adscientificindex.com/pictures/63/1383186.jpg)
Surgical Oncology
Medical Informatics
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
58
35
0.603
* Total H Index Rankings
Ranking Based
On Selection: 6
![Mert Erkan](https://cdn.adscientificindex.com/pictures/07/81761.jpg)
HPB surgery
tumor microenvironment
tumor stroma
stellate cells
molecular biology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
57
41
0.719
* Total H Index Rankings
Ranking Based
On Selection: 7
![Stavros A Antoniou](https://cdn.adscientificindex.com/pictures/0e/1488885.jpg)
minimally invasive surgery
evidence synthesis
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
55
42
0.764
* Total H Index Rankings
Ranking Based
On Selection: 8
![Владимир Александрович Иванов](https://cdn.adscientificindex.com/pictures/3d/4989692.jpg)
Хирургия
ультразвуковая диагностика
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
54
32
0.593
* Total H Index Rankings
Ranking Based
On Selection: 9
![Piotr Major](https://cdn.adscientificindex.com/pictures/f4/908456.jpg)
laparoscopic surgery
bariatric surgery
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
51
45
0.882
* Total H Index Rankings
Ranking Based
On Selection: 10
![Arda Işık](https://cdn.adscientificindex.com/pictures/4a/60342.jpg)
Board Certified Surgeon
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
48
44
0.917
* Total H Index Rankings
Ranking Based
On Selection: 11
![René Fortelny](https://cdn.adscientificindex.com/pictures/5b/1384808.jpg)
Surgery
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
47
32
0.681
* Total H Index Rankings
Ranking Based
On Selection: 12
![Vahit Özmen](https://cdn.adscientificindex.com/pictures/87/87422.jpg)
breast cancer
GERD
laparoscopic Nissen fundoplication
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
46
28
0.609
* Total H Index Rankings
Ranking Based
On Selection: 13
![Sebastian F Schoppmann](https://cdn.adscientificindex.com/pictures/d8/1384809.jpg)
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
45
27
0.600
* Total H Index Rankings
Ranking Based
On Selection: 14
![Michał Pędziwiatr](https://cdn.adscientificindex.com/pictures/88/1521969.jpg)
surgery
oncology
perioperative care
meta-analyses
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
44
38
0.864
* Total H Index Rankings
Ranking Based
On Selection: 15
![Mehmet Mahir Özmen](https://cdn.adscientificindex.com/pictures/2e/80626.jpg)
Surgery
Bariatric and Metabolic Surgery
Surgical Oncology
Robotic/Laparoscopic surgery
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
44
27
0.614
* Total H Index Rankings
Ranking Based
On Selection: 16
![Ahmet Sami Akbulut](https://cdn.adscientificindex.com/pictures/3a/191137.jpg)
Liver Transplantation
Hydatid Disease
Hepataobiliary Surgery
Appendicular Disease
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
43
32
0.744
* Total H Index Rankings
Ranking Based
On Selection: 17
![Boris E. Sakakushev](https://cdn.adscientificindex.com/pictures/ab/1398492.jpg)
General Surgery
Emergency Gen. Surgery
Surgical Oncology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
42
40
0.952
* Total H Index Rankings
Ranking Based
On Selection: 18
![Beuran M](/user/assets/images/profile/no-profile-photo.png)
General Surgery
Emergency Surgery
Surgical Oncology
Minimally Invasive Surgery
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
42
34
0.810
* Total H Index Rankings
Ranking Based
On Selection: 19
![Andrey Litvin|Andrey A. Litvin, Litvin A, A. Litvin](https://cdn.adscientificindex.com/pictures/46/4346972.jpg)
Surgery
AI and blockchain in medicine
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
41
39
0.951
* Total H Index Rankings
Ranking Based
On Selection: 20
![Mihaly Boros](https://cdn.adscientificindex.com/pictures/87/1840901.jpg)
keringéskutatás
kísérletes sebészet
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
41
22
0.537
* Total H Index Rankings
Ranking Based
On Selection: 21
![Erman Aytaç](https://cdn.adscientificindex.com/pictures/d4/4993883.jpg)
Laparoscopic Surgery
Colorectal Surgery
Gastrointestinal Oncology
Pelvic Floor Disorders
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
40
27
0.675
* Total H Index Rankings
Ranking Based
On Selection: 22
![Sezai Yılmaz](/user/assets/images/profile/no-profile-photo.png)
karaciğer nakli
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
38
27
0.711
* Total H Index Rankings
Ranking Based
On Selection: 23
![József Kaszaki](https://cdn.adscientificindex.com/pictures/75/1843523.jpg)
keringés élettan
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
38
19
0.500
* Total H Index Rankings
Ranking Based
On Selection: 24
![Elif Çolak|Elif Colak, Elif Çolak](https://cdn.adscientificindex.com/pictures/93/182707.jpg)
General Surgery
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
37
36
0.973
* Total H Index Rankings
Ranking Based
On Selection: 25
![Mustafa Ümit Uğurlu](https://cdn.adscientificindex.com/pictures/5e/82320.jpg)
breast and endocrine surgery
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
37
26
0.703
Stein Hubert J
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
97
34
0.351
Ionut Negoi
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
88
84
0.955
Medicine
Surgery
Colorectal Surgery
Pancreatic Surgery
Global Surgery.
Christos Dervenis
University of Cyprus
Nicosia, Cyprus
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
81
61
0.753
Mehmet Haberal
Başkent University
Ankara, Türkiye
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
64
28
0.438
Sugery
Transplantation
Burn
Dietmar Öfner
Medizinische Universität Innsbruck
Innsbruck, Austria
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
58
35
0.603
Surgical Oncology
Medical Informatics
Mert Erkan
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
57
41
0.719
HPB surgery
tumor microenvironment
tumor stroma
stellate cells
molecular biology
Stavros A Antoniou
European University Cyprus
Nicosia, Cyprus
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
55
42
0.764
minimally invasive surgery
evidence synthesis
Владимир Александрович Иванов
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
54
32
0.593
Хирургия
ультразвуковая диагностика
Piotr Major
Jagiellonian University
Krakow, Poland
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
51
45
0.882
laparoscopic surgery
bariatric surgery
Arda Işık
İstanbul Medeniyet University
İstanbul, Türkiye
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
48
44
0.917
René Fortelny
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
47
32
0.681
Vahit Özmen
İstanbul University
İstanbul, Türkiye
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
46
28
0.609
breast cancer
GERD
laparoscopic Nissen fundoplication
Sebastian F Schoppmann
Medizinische Universität Wien
Vienna, Austria
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
45
27
0.600
Michał Pędziwiatr
Jagiellonian University
Krakow, Poland
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
44
38
0.864
surgery
oncology
perioperative care
meta-analyses
Mehmet Mahir Özmen
İstinye University
İstanbul, Türkiye
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
44
27
0.614
Surgery
Bariatric and Metabolic Surgery
Surgical Oncology
Robotic/Laparoscopic surgery
Ahmet Sami Akbulut
İnönü University
Malatya, Türkiye
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
43
32
0.744
Liver Transplantation
Hydatid Disease
Hepataobiliary Surgery
Appendicular Disease
Boris E. Sakakushev
Medical University Plovdiv
Plovdiv, Bulgaria
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
42
40
0.952
General Surgery
Emergency Gen. Surgery
Surgical Oncology
Beuran M
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
42
34
0.810
General Surgery
Emergency Surgery
Surgical Oncology
Minimally Invasive Surgery
Andrey Litvin|Andrey A. Litvin, Litvin A, A. Litvin
Immanuel Kant Baltic Federal University
Kaliningrad, Russia
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
41
39
0.951
Surgery
AI and blockchain in medicine
Mihaly Boros
University of Szeged
Szeged, Hungary
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
41
22
0.537
keringéskutatás
kísérletes sebészet
Erman Aytaç
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
40
27
0.675
Laparoscopic Surgery
Colorectal Surgery
Gastrointestinal Oncology
Pelvic Floor Disorders
Sezai Yılmaz
İnönü University
Malatya, Türkiye
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
38
27
0.711
József Kaszaki
University of Szeged
Szeged, Hungary
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
38
19
0.500
Elif Çolak|Elif Colak, Elif Çolak
Samsun University
Samsun, Türkiye
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
37
36
0.973
Mustafa Ümit Uğurlu
Marmara University
İstanbul, Türkiye
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
37
26
0.703
breast and endocrine surgery