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
Paediatric Haematology and Oncology
HIV
Malaria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,750
1,587
0.577
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Haematology-Oncology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,144
611
0.534
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Haematology
Medicinal plants
Oxidative stress
Inflammation and Environmental toxicology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,072
502
0.468
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
Haemoglobinopathies
Thrombosis
Molecular Genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
811
407
0.502
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :5
Natural Product Chemistry/Drug Discovery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
608
311
0.512
Biobele J. Brown
University of Ibadan
Ibadan, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,750
1,587
0.577
Paediatric Haematology and Oncology
HIV
Malaria
Olaniyi John Ayodele
University of Ibadan
Ibadan, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,144
611
0.534
Odunayo Ibraheem Azeez
University of Ibadan
Ibadan, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,072
502
0.468
Haematology
Medicinal plants
Oxidative stress
Inflammation and Environmental toxicology
Taiwo Kotila
University of Ibadan
Ibadan, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
811
407
0.502
Haemoglobinopathies
Thrombosis
Molecular Genetics
Babatunde Samuel
University of Ibadan
Ibadan, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
608
311
0.512
Natural Product Chemistry/Drug Discovery