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
point-of-care
diagnostics
testing
scoping review
implementation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,982
25,548
0.882
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,943
1,383
0.280
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Epidemiology of HIV/AIDS
systematic reviews and meta-analysis
scoping reviews
vaginal microbicid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,822
2,137
0.559
* Total Citation Counts Rankings
Ranking Based On Selection: 4
environmental epidemiology
biostatistics
machine learning
air pollution
climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,682
1,182
0.441
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Respiratory diseases
air pollution
environmental health
children's health
exposure science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,631
918
0.563
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Epidemiology
Paediatric and Perinatal
Reproductive Health
HIV/AIDS
Chronic Diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,340
574
0.428
* Total Citation Counts Rankings
Ranking Based On Selection: 7
tobacco smoking
HIV
TB
alcohol
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
774
200
0.258
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
566
526
0.929
* Total Citation Counts Rankings
Ranking Based On Selection: 9
infectious diseases
public health
zoonoses
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
561
149
0.266
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Reproductive Toxicology
Infectious Diseases
Public Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
434
377
0.869
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Diabetes
Insulin_Primary_Care
Public Health
Implementation Research
Health Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91
80
0.879
Tivani Phosa Mashamba-Thompson
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,982
25,548
0.882
point-of-care
diagnostics
testing
scoping review
implementation
Alan Guthrie
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,943
1,383
0.280
Alfred Musekiwa
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,822
2,137
0.559
Epidemiology of HIV/AIDS
systematic reviews and meta-analysis
scoping reviews
vaginal microbicid
Janine Wichmann
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,682
1,182
0.441
environmental epidemiology
biostatistics
machine learning
air pollution
climate change
Kuku Voyi
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,631
918
0.563
Respiratory diseases
air pollution
environmental health
children's health
exposure science
Shingairai A. Feresu
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,340
574
0.428
Epidemiology
Paediatric and Perinatal
Reproductive Health
HIV/AIDS
Chronic Diseases
Goedele Louwagie
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
774
200
0.258
tobacco smoking
HIV
TB
alcohol
Nicola Sewry
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
566
526
0.929
Bernice N Harris
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
561
149
0.266
infectious diseases
public health
zoonoses
Sean Patrick
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
434
377
0.869
Reproductive Toxicology
Infectious Diseases
Public Health
Patrick Ngassa Piotie
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91
80
0.879
Diabetes
Insulin_Primary_Care
Public Health
Implementation Research
Health Systems