Citation Rankings
Highly Cited Researchers
UNICEF Highly Cited Researchers Citation Rankings (Sort by last 6 years Citation Index) 2025
The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :1
Gender and development
social protection
gender-based violence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,840
9,633
0.750
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
COVID-19
health information systems
health systems
digital health
community health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,559
9,010
0.853
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
drinking water
sanitation and hygiene
data and monitoring
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,727
3,399
0.719
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
water
sanitation
hygiene
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,344
3,189
0.382
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :5
Nutrition
Global health
Social Medicine
Food Systems
Asia-Pacific
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,751
2,729
0.992
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :6
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,459
2,178
0.488
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :7
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,044
2,140
0.703
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :8
Remote sensing
AI
Machine Learning
GIS
Land Use Land Cover Change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,181
2,117
0.666
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :9
medical anthropology
applied anthropology
health and human rights
pandemics and healthcare crisis
adolescent and child healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,306
2,078
0.901
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :10
MNCH
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,885
1,728
0.599
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :11
vaccines
biologicals
product & process development
QbD
QC
freeze-drying
formulation
needle-free delivery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,417
1,637
0.479
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :12
Epidemiology
Immunization
Maternal & Child Health
Humanitarian Emergencies
Disaster Response
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,263
1,507
0.666
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :13
Communication for Social and Behavior Change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,376
1,224
0.515
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :14
Public Health
Education
Child Protection
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,174
1,218
0.384
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :15
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,566
1,145
0.321
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :16
Development Economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,724
1,028
0.596
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :17
early child development
parenting
caregiving
prevention
low- and middle-income countries
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,365
1,001
0.733
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :18
Water Resources and supply engineering in developing countries
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,800
981
0.545
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :19
Nutrition
Public Health
Public Policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,050
959
0.913
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :20
social protection
development economics
impact evaluation
child health
education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,097
930
0.848
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :21
Public Health
Global Health
Equity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
994
920
0.926
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :22
Computational Social Science
Complex Systems
Data Science
Algorithmic Equity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,419
899
0.634
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :23
Education technology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,226
845
0.689
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :24
international and comparative education
science education
psychology
biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,156
783
0.677
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :25
Medicine
Public Health
Epidemiology
Public Health Informatics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,614
767
0.475
* Last 6 Years Citation Counts Rankings
Rankings
38,721
15,012
1
Ranking Based On Selection: 1
Amber Peterman
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,840
9,633
0.750
Gender and development
social protection
gender-based violence
* Last 6 Years Citation Counts Rankings
Rankings
42,665
16,451
2
Ranking Based On Selection: 2
Tyler A Porth
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,559
9,010
0.853
COVID-19
health information systems
health systems
digital health
community health
* Last 6 Years Citation Counts Rankings
Rankings
150,740
52,191
3
Ranking Based On Selection: 3
Robert Bain
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,727
3,399
0.719
* Last 6 Years Citation Counts Rankings
Rankings
162,094
55,633
4
Ranking Based On Selection: 4
Guy Hutton
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,344
3,189
0.382
* Last 6 Years Citation Counts Rankings
Rankings
192,561
64,759
5
Ranking Based On Selection: 5
David Colozza
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,751
2,729
0.992
Nutrition
Global health
Social Medicine
Food Systems
Asia-Pacific
* Last 6 Years Citation Counts Rankings
Rankings
243,550
79,844
6
Ranking Based On Selection: 6
Rafael Obregon
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,459
2,178
0.488
* Last 6 Years Citation Counts Rankings
Rankings
247,996
81,153
7
Ranking Based On Selection: 7
Arnaud Laillou
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,044
2,140
0.703
* Last 6 Years Citation Counts Rankings
Rankings
250,714
81,974
8
Ranking Based On Selection: 8
Do-Hyung Kim
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,181
2,117
0.666
Remote sensing
AI
Machine Learning
GIS
Land Use Land Cover Change
* Last 6 Years Citation Counts Rankings
Rankings
255,565
83,369
9
Ranking Based On Selection: 9
Ginger Johnson
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,306
2,078
0.901
medical anthropology
applied anthropology
health and human rights
pandemics and healthcare crisis
adolescent and child healt
* Last 6 Years Citation Counts Rankings
Rankings
304,961
97,473
10
Ranking Based On Selection: 10
Sufang Guo
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,885
1,728
0.599
* Last 6 Years Citation Counts Rankings
Rankings
320,388
101,819
11
Ranking Based On Selection: 11
Jp Amorij
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,417
1,637
0.479
vaccines
biologicals
product & process development
QbD
QC
freeze-drying
formulation
needle-free delivery
* Last 6 Years Citation Counts Rankings
Rankings
345,218
108,737
12
Ranking Based On Selection: 12
Robin Nandy
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,263
1,507
0.666
Epidemiology
Immunization
Maternal & Child Health
Humanitarian Emergencies
Disaster Response
* Last 6 Years Citation Counts Rankings
Rankings
411,599
127,022
13
Ranking Based On Selection: 13
Paolo Mefalopulos
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,376
1,224
0.515
Communication for Social and Behavior Change
* Last 6 Years Citation Counts Rankings
Rankings
413,160
127,485
14
Ranking Based On Selection: 14
Douglas J Noble
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,174
1,218
0.384
Public Health
Education
Child Protection
* Last 6 Years Citation Counts Rankings
Rankings
433,834
133,049
15
Ranking Based On Selection: 15
Matthew Cummins
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,566
1,145
0.321
* Last 6 Years Citation Counts Rankings
Rankings
471,088
143,058
16
Ranking Based On Selection: 16
Luisa Natali
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,724
1,028
0.596
* Last 6 Years Citation Counts Rankings
Rankings
480,434
145,484
17
Ranking Based On Selection: 17
Anilena Mejia
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,365
1,001
0.733
early child development
parenting
caregiving
prevention
low- and middle-income countries
* Last 6 Years Citation Counts Rankings
Rankings
487,324
147,255
18
Ranking Based On Selection: 18
Samuel Godfrey
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,800
981
0.545
* Last 6 Years Citation Counts Rankings
Rankings
495,464
149,404
19
Ranking Based On Selection: 19
Stanley Chitekwe
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,050
959
0.913
Nutrition
Public Health
Public Policy
* Last 6 Years Citation Counts Rankings
Rankings
506,314
152,223
20
Ranking Based On Selection: 20
Richard De Groot
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,097
930
0.848
social protection
development economics
impact evaluation
child health
education
* Last 6 Years Citation Counts Rankings
Rankings
510,351
153,286
21
Ranking Based On Selection: 21
Richard Kumapley
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
994
920
0.926
Public Health
Global Health
Equity
* Last 6 Years Citation Counts Rankings
Rankings
518,582
155,447
22
Ranking Based On Selection: 22
Manuel Garcia-Herranz
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,419
899
0.634
Computational Social Science
Complex Systems
Data Science
Algorithmic Equity
* Last 6 Years Citation Counts Rankings
Rankings
540,929
161,286
23
Ranking Based On Selection: 23
Ayoub Kafyulilo
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,226
845
0.689
* Last 6 Years Citation Counts Rankings
Rankings
568,626
168,343
24
Ranking Based On Selection: 24
Ingrid Sanchez Tapia
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,156
783
0.677
international and comparative education
science education
psychology
biology
* Last 6 Years Citation Counts Rankings
Rankings
575,874
170,224
25
Ranking Based On Selection: 25
Raoul M Kamadjeu
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,614
767
0.475
Medicine
Public Health
Epidemiology
Public Health Informatics