Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 1.168 Scientists Citation Rankings - 2025
The Citation Rankings (Highly Cited Researchers) list 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.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Internal medicine
Infectious diseases
Oncology
Nuclear Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
69,605
55,086
0.791
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Population Genomics of Tuberculosis and Diabetes Mellitus
Health System Research
Disease Control
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,904
21,867
0.731
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Social Scientist
SHRR and HIV
Medical Sociology
Migrant Health Gender and Human Right
NTDs
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,131
25,400
0.872
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Cardiovascular Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,164
15,522
0.904
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Child Health and Epidemiology Biostatistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,264
9,472
0.664
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Neurology
Stroke
Cardiovascular diseases
M ulcerans Disease
HIV medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,010
7,094
0.709
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Internal Medicine
Infectious Diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,739
5,286
0.543
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Childhood Malaria
Teaching-Cardiovascular
Respiratory
Endocrinology
CNS Physiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,177
3,493
0.381
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Biological Sciences
Soil Microbiology
ISFM
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,008
3,795
0.474
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Internal Medicine
Oncology
Hematology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,601
4,383
0.664
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Applied Microbiology and Quality Assurance
Food Toxicology
Mycotoxin and Epidemiology
Food Product Development and Packaging
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,340
2,332
0.368
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Construction Education and Training
Construction Project Management
Infrastructure Procurement
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,990
2,965
0.495
* Total Citation Counts Rankings
Ranking Based On Selection: 13
International Entrepreneurship
International marketing
Supply Chain Strategy
Sub-Saharan Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,846
4,316
0.738
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Climate Change and Variability
Food Security
Climate Change Adaptations
Vulnerability Assessments
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,585
4,562
0.817
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Environmental Chemistry and Toxicology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,321
3,346
0.629
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Analytical and Environmental Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,221
3,264
0.625
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Global Health
Population Ageing
Public Health & Environment
Health Services Research
Caregiving
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,132
4,968
0.968
* Total Citation Counts Rankings
Ranking Based On Selection: 18
ecosystem
commercial farming
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,991
1,073
0.215
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Construction Management
Procurement Management
Construction Finance
Business Consulting
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,837
3,860
0.798
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Underutilized fruits and vegetables
Root and Tuber
Food Processing
Product developement
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,716
2,577
0.546
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Internal Medicine
Massive splenomegaly
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,386
1,435
0.327
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Respiratory viruses
Zoonotic viruses
Coronaviruses
STEM
One health issues
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,351
2,568
0.590
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Microbiology
antibiotic resistance
antimicrobial agents
wound healing agents
medicinal plants
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,247
2,750
0.648
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Child Health
Pediatric Cardiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,932
1,612
0.410
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Parasitology and Global Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,879
1,501
0.387
* Total Citation Counts Rankings
Rankings
6,036
1
1
Ranking Based On Selection: 1
Yaw Ampem Amoako
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
69,605
55,086
0.791
Internal medicine
Infectious diseases
Oncology
Nuclear Medicine
* Total Citation Counts Rankings
Rankings
23,136
5
2
Ranking Based On Selection: 2
Ellis Owusu Dabo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,904
21,867
0.731
Population Genomics of Tuberculosis and Diabetes Mellitus
Health System Research
Disease Control
* Total Citation Counts Rankings
Rankings
24,078
6
3
Ranking Based On Selection: 3
Appiah Seth Christopher Yaw
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,131
25,400
0.872
Social Scientist
SHRR and HIV
Medical Sociology
Migrant Health Gender and Human Right
NTDs
* Total Citation Counts Rankings
Rankings
51,054
14
4
Ranking Based On Selection: 4
Lambert Appiah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,164
15,522
0.904
* Total Citation Counts Rankings
Rankings
65,291
18
5
Ranking Based On Selection: 5
Daniel Ansong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,264
9,472
0.664
Child Health and Epidemiology Biostatistics
* Total Citation Counts Rankings
Rankings
100,418
22
6
Ranking Based On Selection: 6
Fred Stephen Sarfo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,010
7,094
0.709
Neurology
Stroke
Cardiovascular diseases
M ulcerans Disease
HIV medicine
* Total Citation Counts Rankings
Rankings
103,603
23
7
Ranking Based On Selection: 7
Richard Odame Phillips
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,739
5,286
0.543
Internal Medicine
Infectious Diseases
* Total Citation Counts Rankings
Rankings
110,885
25
8
Ranking Based On Selection: 8
Tsiri Agbenyega
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,177
3,493
0.381
Childhood Malaria
Teaching-Cardiovascular
Respiratory
Endocrinology
CNS Physiology
* Total Citation Counts Rankings
Rankings
129,081
32
9
Ranking Based On Selection: 9
Robert Clement Abaidoo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,008
3,795
0.474
Biological Sciences
Soil Microbiology
ISFM
* Total Citation Counts Rankings
Rankings
158,513
42
10
Ranking Based On Selection: 10
Ohene Opare-Sem
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,601
4,383
0.664
Internal Medicine
Oncology
Hematology
* Total Citation Counts Rankings
Rankings
165,328
43
11
Ranking Based On Selection: 11
William Otoo Ellis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,340
2,332
0.368
Applied Microbiology and Quality Assurance
Food Toxicology
Mycotoxin and Epidemiology
Food Product Development and Packaging
* Total Citation Counts Rankings
Rankings
174,974
50
12
Ranking Based On Selection: 12
Emmanuel Adinyira
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,990
2,965
0.495
Construction Education and Training
Construction Project Management
Infrastructure Procurement
* Total Citation Counts Rankings
Rankings
179,272
51
13
Ranking Based On Selection: 13
Nathaniel Boso
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,846
4,316
0.738
International Entrepreneurship
International marketing
Supply Chain Strategy
Sub-Saharan Africa
* Total Citation Counts Rankings
Rankings
187,528
55
14
Ranking Based On Selection: 14
Philip Antwi Agyei
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,585
4,562
0.817
Climate Change and Variability
Food Security
Climate Change Adaptations
Vulnerability Assessments
* Total Citation Counts Rankings
Rankings
196,610
62
15
Ranking Based On Selection: 15
Osei Akoto
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,321
3,346
0.629
Environmental Chemistry and Toxicology
* Total Citation Counts Rankings
Rankings
200,250
63
16
Ranking Based On Selection: 16
Godfred Darko
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,221
3,264
0.625
Analytical and Environmental Chemistry
* Total Citation Counts Rankings
Rankings
203,653
65
17
Ranking Based On Selection: 17
Williams Agyemang Duah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,132
4,968
0.968
Global Health
Population Ageing
Public Health & Environment
Health Services Research
Caregiving
* Total Citation Counts Rankings
Rankings
209,342
68
18
Ranking Based On Selection: 18
Adu-Boahen Raymond
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,991
1,073
0.215
* Total Citation Counts Rankings
Rankings
215,656
69
19
Ranking Based On Selection: 19
De Graft Owusu Manu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,837
3,860
0.798
Construction Management
Procurement Management
Construction Finance
Business Consulting
* Total Citation Counts Rankings
Rankings
220,872
73
20
Ranking Based On Selection: 20
Ibok Oduro
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,716
2,577
0.546
Underutilized fruits and vegetables
Root and Tuber
Food Processing
Product developement
* Total Citation Counts Rankings
Rankings
236,286
82
21
Ranking Based On Selection: 21
George Bedu-Addo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,386
1,435
0.327
Internal Medicine
Massive splenomegaly
* Total Citation Counts Rankings
Rankings
238,032
84
22
Ranking Based On Selection: 22
Augustina Angelina Sylverken
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,351
2,568
0.590
Respiratory viruses
Zoonotic viruses
Coronaviruses
STEM
One health issues
* Total Citation Counts Rankings
Rankings
243,363
86
23
Ranking Based On Selection: 23
Christian Agyare
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,247
2,750
0.648
Microbiology
antibiotic resistance
antimicrobial agents
wound healing agents
medicinal plants
* Total Citation Counts Rankings
Rankings
261,088
101
24
Ranking Based On Selection: 24
Samuel Blay Nguah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,932
1,612
0.410
Child Health
Pediatric Cardiology
* Total Citation Counts Rankings
Rankings
264,203
103
25
Ranking Based On Selection: 25
Linda B Debrah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,879
1,501
0.387
Parasitology and Global Health