Total 2,424,675 scientists, country 221, and institutions 24,468 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
- Make strategic, data-driven decisions to enhance performance.
* Total i10 IndexRankings
Ranking Based On Selection: 1
![Reza Razavi](https://cdn.adscientificindex.com/pictures/78/1219721.jpg)
Cardiovascular imaging and computational modelling
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
352
242
0.688
* Total i10 IndexRankings
Ranking Based On Selection: 2
![Klein Samuel](/user/assets/images/profile/no-profile-photo.png)
preventive cardiology
pediatric cardiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
324
207
0.639
* Total i10 IndexRankings
Ranking Based On Selection: 3
![Felix Berger](/user/assets/images/profile/no-profile-photo.png)
Congenital Heart Disease
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
320
206
0.644
* Total i10 IndexRankings
Ranking Based On Selection: 4
![Daniel Bernstein](https://cdn.adscientificindex.com/pictures/1b/1650219.jpg)
Cardiomyopathies
Cell signaling
transplantation
Pediatric Cardiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
238
147
0.618
* Total i10 IndexRankings
Ranking Based On Selection: 5
![Michael Cheung](/user/assets/images/profile/no-profile-photo.png)
Paediatric Cardiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
166
139
0.837
* Total i10 IndexRankings
Ranking Based On Selection: 6
![Mark Friedberg](/user/assets/images/profile/no-profile-photo.png)
pediatric cardiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
158
124
0.785
* Total i10 IndexRankings
Ranking Based On Selection: 7
![Erdal Yılmaz](/user/assets/images/profile/no-profile-photo.png)
Pediatri
pediatrik kardiyoloji
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
149
58
0.389
* Total i10 IndexRankings
Ranking Based On Selection: 8
![Gianfranco Butera](/user/assets/images/profile/no-profile-photo.png)
pediatric cardiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
137
70
0.511
* Total i10 IndexRankings
Ranking Based On Selection: 9
![Liesl Zuhlke](https://cdn.adscientificindex.com/pictures/8c/101486.jpg)
Paediatric Cardiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
128
118
0.922
* Total i10 IndexRankings
Ranking Based On Selection: 10
![Zhi-Cheng Jing](https://cdn.adscientificindex.com/pictures/4e/4989415.jpg)
Congenital Heart disease
Pulmonary hypertension
pulmonary embolism
Cardiology
pediatric
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
127
106
0.835
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* Total i10 IndexRankings
Ranking Based On Selection: 11
![Lucia Campos Pellanda](/user/assets/images/profile/no-profile-photo.png)
Research Methodology
Prevention
Pediatric cardiology
Medical Education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
114
73
0.640
* Total i10 IndexRankings
Ranking Based On Selection: 12
![Renate Oberhoffer](/user/assets/images/profile/no-profile-photo.png)
Pediatric Cardiology
Fetal Cardiology
Preventional and Sports Medicine
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
112
85
0.759
* Total i10 IndexRankings
Ranking Based On Selection: 13
![Paul F Kantor](https://cdn.adscientificindex.com/pictures/24/1623977.jpg)
Pediatric Cardiology
Heart Failure
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
105
72
0.686
* Total i10 IndexRankings
Ranking Based On Selection: 14
![Mustafa Doğan](/user/assets/images/profile/no-profile-photo.png)
tıp
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
100
46
0.460
* Total i10 IndexRankings
Ranking Based On Selection: 15
![Gi Beom Kim](https://cdn.adscientificindex.com/pictures/51/555510.jpg)
pediatric cardiology
congenital heart disease
catheter intervention
Kawasaki disease
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
94
64
0.681
* Total i10 IndexRankings
Ranking Based On Selection: 16
![Christopher Almond](/user/assets/images/profile/no-profile-photo.png)
pediatric cardiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
91
75
0.824
* Total i10 IndexRankings
Ranking Based On Selection: 17
![Seema Mital](/user/assets/images/profile/no-profile-photo.png)
Pediatric cardiology
genomics
stem cells
heart failure
transplant
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
91
50
0.549
* Total i10 IndexRankings
Ranking Based On Selection: 18
![Tarique Hussain](https://cdn.adscientificindex.com/pictures/27/5726016.jpg)
Pediatric Cardiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
84
62
0.738
* Total i10 IndexRankings
Ranking Based On Selection: 19
![Timothy J Bradley](/user/assets/images/profile/no-profile-photo.png)
Pediatric Cardiology
Vascular Biology
Aortic Disease
Marfan syndrome
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
82
61
0.744
* Total i10 IndexRankings
Ranking Based On Selection: 20
![Kuberan Pushparajah](https://cdn.adscientificindex.com/pictures/a2/1241208.jpg)
Cardiovascular imaging
Congenital Heart Disease
Paediatric cardiology
iCMR
Fetal CMR
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
73
0.901
* Total i10 IndexRankings
Ranking Based On Selection: 21
![Sachin Khambadkone](https://cdn.adscientificindex.com/pictures/ba/4927394.jpg)
Paediatric Cardiology
Interventional Cardiology
Fontan circulation
Percutaneous pulmonary valve implantation
Interventional
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
50
0.658
* Total i10 IndexRankings
Ranking Based On Selection: 22
![Hasan Ercan Tutar](/user/assets/images/profile/no-profile-photo.png)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
73
18
0.247
* Total i10 IndexRankings
Ranking Based On Selection: 23
![Fadi Bitar](https://cdn.adscientificindex.com/pictures/d0/291167.jpg)
Pediatric Cardiology
Epidemiology and Genetics of CHD
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
43
0.597
* Total i10 IndexRankings
Ranking Based On Selection: 24
![Israel Valverde](https://cdn.adscientificindex.com/pictures/9f/4366241.jpg)
Paediatric Cardiology
Cardiac Magnetic Resonance
MRI
Magnetic Resonance Imaging
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
70
56
0.800
* Total i10 IndexRankings
Ranking Based On Selection: 25
![Laura Mercer-Rosa](/user/assets/images/profile/no-profile-photo.png)
pediatric cardiology
right ventricle
tetralogy of Fallot
pulmonary hypertension
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
60
0.882
Reza Razavi
King's College London
London, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
352
242
0.688
Cardiovascular imaging and computational modelling
Klein Samuel
Washington University Saint Louis
St. Louis, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
324
207
0.639
preventive cardiology
pediatric cardiology
Felix Berger
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
320
206
0.644
Congenital Heart Disease
Daniel Bernstein
Stanford University
Stanford, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
238
147
0.618
Cardiomyopathies
Cell signaling
transplantation
Pediatric Cardiology
Michael Cheung
Royal Children's Hospital Melbourne
Parkville, Australia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
166
139
0.837
Paediatric Cardiology
Mark Friedberg
Hospital for Sick Children
Toronto, Canada
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
158
124
0.785
pediatric cardiology
Erdal Yılmaz
Fırat University
Elazığ, Türkiye
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
149
58
0.389
Pediatri
pediatrik kardiyoloji
Gianfranco Butera
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
137
70
0.511
pediatric cardiology
Liesl Zuhlke
University of Cape Town
Cape Town, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
128
118
0.922
Paediatric Cardiology
Zhi-Cheng Jing
Peking Union Medical College
Beijing, China
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
127
106
0.835
Congenital Heart disease
Pulmonary hypertension
pulmonary embolism
Cardiology
pediatric
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Lucia Campos Pellanda
Fundação Universitária de Cardiologia
Porto Alegre, Brazil
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
114
73
0.640
Research Methodology
Prevention
Pediatric cardiology
Medical Education
Renate Oberhoffer
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
112
85
0.759
Pediatric Cardiology
Fetal Cardiology
Preventional and Sports Medicine
Paul F Kantor
University of Southern California
Los Angeles, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
105
72
0.686
Pediatric Cardiology
Heart Failure
Mustafa Doğan
Pamukkale University
Denizli, Türkiye
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
100
46
0.460
Gi Beom Kim
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
94
64
0.681
pediatric cardiology
congenital heart disease
catheter intervention
Kawasaki disease
Christopher Almond
Stanford University
Stanford, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
91
75
0.824
pediatric cardiology
Seema Mital
Hospital for Sick Children
Toronto, Canada
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
91
50
0.549
Pediatric cardiology
genomics
stem cells
heart failure
transplant
Tarique Hussain
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
84
62
0.738
Pediatric Cardiology
Timothy J Bradley
University of Saskatchewan
Saskatoon, Canada
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
82
61
0.744
Pediatric Cardiology
Vascular Biology
Aortic Disease
Marfan syndrome
Kuberan Pushparajah
King's College London
London, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
73
0.901
Cardiovascular imaging
Congenital Heart Disease
Paediatric cardiology
iCMR
Fetal CMR
Sachin Khambadkone
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
50
0.658
Paediatric Cardiology
Interventional Cardiology
Fontan circulation
Percutaneous pulmonary valve implantation
Interventional
Hasan Ercan Tutar
Ankara University
Ankara, Türkiye
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
73
18
0.247
Fadi Bitar
American University of Beirut
Beirut, Lebanon
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
43
0.597
Pediatric Cardiology
Epidemiology and Genetics of CHD
Israel Valverde
Universidad de Sevilla
Sevilla, Spain
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
70
56
0.800
Paediatric Cardiology
Cardiac Magnetic Resonance
MRI
Magnetic Resonance Imaging
Laura Mercer-Rosa
Children's Hospital of Philadelphia
Philadelphia, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
60
0.882
pediatric cardiology
right ventricle
tetralogy of Fallot
pulmonary hypertension