Citation Rankings
Highly Cited Researchers
UNICEF Highly Cited Researchers CitationOthers Rankings (Sort by last 6 years Citation Index) 2025
Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: 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
drinking water
sanitation and hygiene
data and monitoring
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,496
3,173
0.706
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
water
sanitation
hygiene
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,159
3,038
0.372
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,349
2,082
0.479
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,910
2,022
0.695
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :5
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
2,196
1,971
0.898
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :6
MNCH
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,825
1,670
0.591
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :7
vaccines
biologicals
product & process development
QbD
QC
freeze-drying
formulation
needle-free delivery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,344
1,567
0.469
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :8
early child development
parenting
caregiving
prevention
low- and middle-income countries
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,302
944
0.725
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :9
Water Resources and supply engineering in developing countries
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,747
932
0.533
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :10
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
817
469
0.574
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :11
CHWs
geography of community health / CHWs
integrated community case management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
766
464
0.606
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :12
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
525
448
0.853
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :13
Maternal and Newborn Health
HIV
Reproductive Health
Nutrition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
610
335
0.549
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :14
water
saitation
cities
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
758
328
0.433
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :15
digital learning
distance learning
innovation
AI
out-of-school children
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
433
256
0.591
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :16
Climate Change
Co-benefit
GHG emission
MSW
recycling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
188
130
0.691
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :17
Public Health
Environmental Health
Health Development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
124
121
0.976
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :18
Health Systems
Digital Health
Policy Analysis
Global Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
115
114
0.991
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :19
Health System Strengthening
Maternal & Child Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
163
109
0.669
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :20
Behaviour Science
Social Change
Communication for Development
Teaching and Learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
116
106
0.914
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :21
human rights
hard-to-reach populations
ethics
applied research
migration
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
243
104
0.428
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :22
Health Systems Strengthening
Digital Health
RMNCAH
HIV/AIDS/TB/Malaria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64
64
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :23
Climate change
health systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77
60
0.779
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :24
children
well-being
social policies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53
51
0.962
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :25
GIS & Remote sensing
Pollution
Environment
Data science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51
51
1.000
* Last 6 Years Citation Counts Rankings
Rankings
153,075
53,240
3
Ranking Based On Selection: 1
Robert Bain
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,496
3,173
0.706
* Last 6 Years Citation Counts Rankings
Rankings
160,739
55,478
4
Ranking Based On Selection: 2
Guy Hutton
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,159
3,038
0.372
* Last 6 Years Citation Counts Rankings
Rankings
240,829
79,482
5
Ranking Based On Selection: 3
Rafael Obregon
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,349
2,082
0.479
* Last 6 Years Citation Counts Rankings
Rankings
248,101
81,636
7
Ranking Based On Selection: 4
Arnaud Laillou
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,910
2,022
0.695
* Last 6 Years Citation Counts Rankings
Rankings
254,644
83,494
9
Ranking Based On Selection: 5
Ginger Johnson
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,196
1,971
0.898
medical anthropology
applied anthropology
health and human rights
pandemics and healthcare crisis
adolescent and child healt
* Last 6 Years Citation Counts Rankings
Rankings
298,590
96,133
10
Ranking Based On Selection: 6
Sufang Guo
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,825
1,670
0.591
* Last 6 Years Citation Counts Rankings
Rankings
316,495
101,328
11
Ranking Based On Selection: 7
Jp Amorij
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,344
1,567
0.469
vaccines
biologicals
product & process development
QbD
QC
freeze-drying
formulation
needle-free delivery
* Last 6 Years Citation Counts Rankings
Rankings
480,188
146,260
17
Ranking Based On Selection: 8
Anilena Mejia
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,302
944
0.725
early child development
parenting
caregiving
prevention
low- and middle-income countries
* Last 6 Years Citation Counts Rankings
Rankings
484,562
147,409
18
Ranking Based On Selection: 9
Samuel Godfrey
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,747
932
0.533
* Last 6 Years Citation Counts Rankings
Rankings
734,353
209,028
29
Ranking Based On Selection: 10
Arjan De Wagt
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
817
469
0.574
* Last 6 Years Citation Counts Rankings
Rankings
738,467
209,953
30
Ranking Based On Selection: 11
Nicholas P Oliphant
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
766
464
0.606
CHWs
geography of community health / CHWs
integrated community case management
* Last 6 Years Citation Counts Rankings
Rankings
752,486
212,995
31
Ranking Based On Selection: 12
Ariel Higgins-Steele
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
525
448
0.853
* Last 6 Years Citation Counts Rankings
Rankings
873,493
237,506
35
Ranking Based On Selection: 13
Asha Pun
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
610
335
0.549
* Last 6 Years Citation Counts Rankings
Rankings
882,415
239,243
37
Ranking Based On Selection: 14
Daniel Van Rooijen
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
758
328
0.433
* Last 6 Years Citation Counts Rankings
Rankings
991,956
259,506
43
Ranking Based On Selection: 15
Frank Van Cappelle
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
433
256
0.591
digital learning
distance learning
innovation
AI
out-of-school children
* Last 6 Years Citation Counts Rankings
Rankings
1,304,098
309,753
48
Ranking Based On Selection: 16
Amornchai Challcharoenwattana
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
188
130
0.691
* Last 6 Years Citation Counts Rankings
Rankings
1,338,199
314,887
49
Ranking Based On Selection: 17
Suyitno
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
124
121
0.976
* Last 6 Years Citation Counts Rankings
Rankings
1,365,462
318,949
51
Ranking Based On Selection: 18
Sunny Ibeneme
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
115
114
0.991
* Last 6 Years Citation Counts Rankings
Rankings
1,383,976
321,726
53
Ranking Based On Selection: 19
Sanjeev Upadhyaya
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
163
109
0.669
* Last 6 Years Citation Counts Rankings
Rankings
1,397,632
323,683
54
Ranking Based On Selection: 20
Anastasiya Nurzhynska, Анастасія Нуржинська
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
116
106
0.914
Behaviour Science
Social Change
Communication for Development
Teaching and Learning
* Last 6 Years Citation Counts Rankings
Rankings
1,404,174
324,653
55
Ranking Based On Selection: 21
Andrea Rossi
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
243
104
0.428
human rights
hard-to-reach populations
ethics
applied research
migration
* Last 6 Years Citation Counts Rankings
Rankings
1,614,219
354,575
62
Ranking Based On Selection: 22
Daniel Salihu
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64
64
1.000
Health Systems Strengthening
Digital Health
RMNCAH
HIV/AIDS/TB/Malaria
* Last 6 Years Citation Counts Rankings
Rankings
1,636,738
357,693
63
Ranking Based On Selection: 23
Swati Manchikanti
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77
60
0.779
* Last 6 Years Citation Counts Rankings
Rankings
1,700,394
366,502
65
Ranking Based On Selection: 24
Sabbiana Cunsolo
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53
51
0.962
* Last 6 Years Citation Counts Rankings
Rankings
1,702,690
366,830
66
Ranking Based On Selection: 25
Saikat Mandal Tanu
UNICEF
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51
51
1.000