Citation Rankings
Highly Cited Researchers
Highly Cited Researchers Citation Rankings 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.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Public Health Nutrition
Nutrition epidemiology
Infant and young child feeding
maternal and child health research
HIV and nut
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79,651
63,360
0.795
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Medical and Health Science
Health Economics
Economic Evaluations in Healthcare
Health Policy
Public Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,624
37,356
0.967
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Malaria research
clinical trials
infectious diseases epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,775
10,337
0.523
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Public Health
Noncommunicable Diseases
Reproductive Health
Mental Health
HIV
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,419
19,303
0.994
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Implementation research
patient safety and quality care
staff motivation
health financing
nursing education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,695
15,382
0.980
* Total Citation Counts Rankings
Ranking Based On Selection: 6
measurements
malaria
infectious disease
public health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,867
4,336
0.292
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Public Health
Epidemiology
Disease Control
Neglected Tropical Diseases
Research Capacity Strenghtening
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,728
4,000
0.341
* Total Citation Counts Rankings
Ranking Based On Selection: 8
infectious diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,336
4,364
0.422
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Internal Medicine
HIV
Tuberculosis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,694
3,229
0.333
* Total Citation Counts Rankings
Ranking Based On Selection: 10
HIV Mental Health & Psychiatry Practice
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,557
4,015
0.420
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Clinical Microbiology and Infectious Diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,833
6,253
0.708
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Social Science
Implementation Research
Gender and Neglected tropical diseases
Malaria
Demographic Surveillance Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,276
5,498
0.664
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Microbiology and Immunology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,457
3,880
0.520
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Pediatrics
HIV
Nutrition
Neonatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,222
3,367
0.466
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Health
Internal Medicine
Haematology
Sickle cell Disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,269
3,892
0.621
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Immunology of infectious diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,263
1,835
0.293
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Public Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,917
5,895
0.996
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Epidemiology & Biostatistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,706
1,942
0.340
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Maternal and child health services
HIV/AIDS
Monitoring and Evaluation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,257
2,960
0.563
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Global Surgery. Implementation Science. Paediatric surgery. Child health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,762
2,454
0.515
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Health Economics
Global Health
Development Economics
Fiscal Policy for Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,622
4,546
0.984
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Epidemiology
Public Health
Malaria
Infectious diseases
Health systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,417
2,573
0.583
* Total Citation Counts Rankings
Ranking Based On Selection: 23
antimicrobials
cytotoxic
antiplasmodial
antiproliferative
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,924
1,551
0.395
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Infectious diseases
Therapeutic efficacy studies
antimicrobial resistance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,848
2,554
0.664
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Cancer Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,840
2,709
0.705
* Total Citation Counts Rankings
Rankings
4,680
1
1
Ranking Based On Selection: 1
Bruno Sunguya
Muhimbili University of Health and Allied Sciences
Dar es salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79,651
63,360
0.795
Public Health Nutrition
Nutrition epidemiology
Infant and young child feeding
maternal and child health research
HIV and nut
* Total Citation Counts Rankings
Rankings
15,102
4
1
Ranking Based On Selection: 2
Martin Amogre Ayanore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,624
37,356
0.967
Medical and Health Science
Health Economics
Economic Evaluations in Healthcare
Health Policy
Public Health
* Total Citation Counts Rankings
Rankings
41,202
7
2
Ranking Based On Selection: 3
Seth Owusu Agyei
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,775
10,337
0.523
Malaria research
clinical trials
infectious diseases epidemiology
* Total Citation Counts Rankings
Rankings
42,210
9
3
Ranking Based On Selection: 4
Hubert Amu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,419
19,303
0.994
Public Health
Noncommunicable Diseases
Reproductive Health
Mental Health
HIV
* Total Citation Counts Rankings
Rankings
56,259
16
4
Ranking Based On Selection: 5
Robert Kaba Alhassan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,695
15,382
0.980
Implementation research
patient safety and quality care
staff motivation
health financing
nursing education
* Total Citation Counts Rankings
Rankings
60,460
18
5
Ranking Based On Selection: 6
Fred Binka
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,867
4,336
0.292
measurements
malaria
infectious disease
public health
* Total Citation Counts Rankings
Rankings
81,563
21
6
Ranking Based On Selection: 7
John Gyapong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,728
4,000
0.341
Public Health
Epidemiology
Disease Control
Neglected Tropical Diseases
Research Capacity Strenghtening
* Total Citation Counts Rankings
Rankings
94,854
4
2
Ranking Based On Selection: 8
Mecky Matee
Muhimbili University of Health and Allied Sciences
Dar es salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,336
4,364
0.422
infectious diseases
* Total Citation Counts Rankings
Rankings
102,036
7
3
Ranking Based On Selection: 9
Ferdinand Mugusi
Muhimbili University of Health and Allied Sciences
Dar es salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,694
3,229
0.333
Internal Medicine
HIV
Tuberculosis
* Total Citation Counts Rankings
Rankings
103,684
8
4
Ranking Based On Selection: 10
Sylvia Kaaya
Muhimbili University of Health and Allied Sciences
Dar es salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,557
4,015
0.420
HIV Mental Health & Psychiatry Practice
* Total Citation Counts Rankings
Rankings
113,419
10
1
Ranking Based On Selection: 11
Stephen E. Mshana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,833
6,253
0.708
Clinical Microbiology and Infectious Diseases
* Total Citation Counts Rankings
Rankings
122,048
31
7
Ranking Based On Selection: 12
Margaret Gyapong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,276
5,498
0.664
Social Science
Implementation Research
Gender and Neglected tropical diseases
Malaria
Demographic Surveillance Systems
* Total Citation Counts Rankings
Rankings
136,784
16
5
Ranking Based On Selection: 13
Said Aboud
Muhimbili University of Health and Allied Sciences
Dar es salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,457
3,880
0.520
Microbiology and Immunology
* Total Citation Counts Rankings
Rankings
141,578
17
6
Ranking Based On Selection: 14
Karim Manji
Muhimbili University of Health and Allied Sciences
Dar es salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,222
3,367
0.466
Pediatrics
HIV
Nutrition
Neonatology
* Total Citation Counts Rankings
Rankings
164,019
18
7
Ranking Based On Selection: 15
Julie Makani
Muhimbili University of Health and Allied Sciences
Dar es salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,269
3,892
0.621
Health
Internal Medicine
Haematology
Sickle cell Disease
* Total Citation Counts Rankings
Rankings
164,180
19
8
Ranking Based On Selection: 16
Eligius Lyamuya
Muhimbili University of Health and Allied Sciences
Dar es salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,263
1,835
0.293
Immunology of infectious diseases
* Total Citation Counts Rankings
Rankings
173,776
49
8
Ranking Based On Selection: 17
Richard Gyan Aboagye
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,917
5,895
0.996
* Total Citation Counts Rankings
Rankings
180,198
53
9
Ranking Based On Selection: 18
Martin Adjuik
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,706
1,942
0.340
Epidemiology & Biostatistics
* Total Citation Counts Rankings
Rankings
195,167
26
9
Ranking Based On Selection: 19
Rose Mpembeni
Muhimbili University of Health and Allied Sciences
Dar es salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,257
2,960
0.563
Maternal and child health services
HIV/AIDS
Monitoring and Evaluation
* Total Citation Counts Rankings
Rankings
214,744
29
10
Ranking Based On Selection: 20
Kokila Lakhoo
Muhimbili University of Health and Allied Sciences
Dar es salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,762
2,454
0.515
Global Surgery. Implementation Science. Paediatric surgery. Child health
* Total Citation Counts Rankings
Rankings
220,834
70
10
Ranking Based On Selection: 21
Mustapha Immurana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,622
4,546
0.984
Health Economics
Global Health
Development Economics
Fiscal Policy for Health
* Total Citation Counts Rankings
Rankings
230,419
80
11
Ranking Based On Selection: 22
Evelyn Korkor Ansah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,417
2,573
0.583
Epidemiology
Public Health
Malaria
Infectious diseases
Health systems
* Total Citation Counts Rankings
Rankings
256,839
45
11
Ranking Based On Selection: 23
Mainen Moshi
Muhimbili University of Health and Allied Sciences
Dar es salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,924
1,551
0.395
* Total Citation Counts Rankings
Rankings
261,210
48
12
Ranking Based On Selection: 24
Billy Ngasala
Muhimbili University of Health and Allied Sciences
Dar es salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,848
2,554
0.664
Infectious diseases
Therapeutic efficacy studies
antimicrobial resistance
* Total Citation Counts Rankings
Rankings
261,688
49
2
Ranking Based On Selection: 25
Peter Rambau
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,840
2,709
0.705