Citation Rankings
Highly Cited Researchers
Others 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
Reproductive Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,003
584
0.582
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Internal Medicine/Gastroenterology/Infectious Diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
999
767
0.768
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Infertility and Endocrinology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
916
612
0.668
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Infectious Diseases Epidemiology
Health Policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
889
621
0.699
* Total Citation Counts Rankings
Ranking Based On Selection: 5
hiv
nephrology
tuberculosis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
797
404
0.507
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Reproductive Endocrinology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
763
399
0.523
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Paediatric endocrinology
Diabetes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
749
593
0.792
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Family Planning and Reproductive Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
744
330
0.444
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Soil Productivity and Conservation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
664
390
0.587
* Total Citation Counts Rankings
Ranking Based On Selection: 10
enzymology
Rheumatoid arthrities
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
437
371
0.849
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Social Studies
Civic and Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
361
267
0.740
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Plastic Cosmetic Reconstructive and Burns surgery
Cleft lip and palate
Hand surgery
Wound care
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
360
320
0.889
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Environmental Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
336
205
0.610
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Metabolic Diseases
Diabetes
Pharmacology and Obesity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
329
326
0.991
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Mas Communication
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
318
314
0.987
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
273
228
0.835
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Reproductive Health
Maternal and Child Health
Occupational Health
Malaria
Health Policy and Health Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
267
220
0.824
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Cardiovascular medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
230
219
0.952
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Problem Solving
Grit
Reward
Cognitive Style
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
216
206
0.954
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Associate Prof of Agronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
216
142
0.657
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Development Administration
Local Government Administration
Intergovernmental Relations
Financial
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
205
182
0.888
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Hydrogeology
Engineering Geology
Geochemistry
Geophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
193
168
0.870
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Insurance and Risk Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
190
164
0.863
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Laboratory Medicine
Molecular Diagnosis/Epidemiology
Neglected Tropical Infectious Disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
177
130
0.734
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Public Health Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
174
150
0.862
* Total Citation Counts Rankings
Rankings
677,447
2,117
6
Ranking Based On Selection: 1
Justus Ndulue Eze
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,003
584
0.582
* Total Citation Counts Rankings
Rankings
678,806
2,139
7
Ranking Based On Selection: 2
Nnennaya Ajayi
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
999
767
0.768
* Total Citation Counts Rankings
Rankings
710,056
2,528
10
Ranking Based On Selection: 3
Johnson Akuma Obuna
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
916
612
0.668
* Total Citation Counts Rankings
Rankings
720,764
2,668
11
Ranking Based On Selection: 4
Lawrence Ulu Ogbonnaya
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
889
621
0.699
* Total Citation Counts Rankings
Rankings
759,771
3,244
15
Ranking Based On Selection: 5
Ngozi Ifebunandu
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
797
404
0.507
* Total Citation Counts Rankings
Rankings
774,900
3,447
16
Ranking Based On Selection: 6
Boniface Brown Nnamdi Ejikeme
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
763
399
0.523
* Total Citation Counts Rankings
Rankings
781,191
3,551
18
Ranking Based On Selection: 7
Maryann Ugochi Ibekwe
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
749
593
0.792
* Total Citation Counts Rankings
Rankings
783,789
3,591
20
Ranking Based On Selection: 8
Perpetus C Ibekwe
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
744
330
0.444
* Total Citation Counts Rankings
Rankings
822,529
4,226
25
Ranking Based On Selection: 9
James Nte Nwite
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
664
390
0.587
* Total Citation Counts Rankings
Rankings
972,595
7,055
56
Ranking Based On Selection: 10
Ezeani Nkiru Nwamaka
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
437
371
0.849
* Total Citation Counts Rankings
Rankings
1,049,430
8,558
68
Ranking Based On Selection: 11
Ogene Azubuike Oyibe
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
361
267
0.740
* Total Citation Counts Rankings
Rankings
1,050,241
8,573
69
Ranking Based On Selection: 12
Ugochukwu Nnadozie
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
360
320
0.889
Plastic Cosmetic Reconstructive and Burns surgery
Cleft lip and palate
Hand surgery
Wound care
* Total Citation Counts Rankings
Rankings
1,078,420
9,135
76
Ranking Based On Selection: 13
Victor Maduka Agah
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
336
205
0.610
* Total Citation Counts Rankings
Rankings
1,086,261
9,295
77
Ranking Based On Selection: 14
Awoke Joshua Nonso
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
329
326
0.991
* Total Citation Counts Rankings
Rankings
1,099,909
9,580
80
Ranking Based On Selection: 15
Elem Stephen Nwanchor
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
318
314
0.987
* Total Citation Counts Rankings
Rankings
1,163,664
10,880
100
Ranking Based On Selection: 16
Nwankwo Victor Ugadu-Omoha
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
273
228
0.835
* Total Citation Counts Rankings
Rankings
1,173,211
11,068
104
Ranking Based On Selection: 17
Adaoha Pearl Agu
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
267
220
0.824
Reproductive Health
Maternal and Child Health
Occupational Health
Malaria
Health Policy and Health Systems
* Total Citation Counts Rankings
Rankings
1,235,485
12,446
116
Ranking Based On Selection: 18
Collins Nwachi Ugwu
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
230
219
0.952
* Total Citation Counts Rankings
Rankings
1,262,135
13,023
126
Ranking Based On Selection: 19
Nwonyi Sampson Kelechi
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
216
206
0.954
* Total Citation Counts Rankings
Rankings
1,262,939
13,043
128
Ranking Based On Selection: 20
Nwokwu, Gilbert Nwogboduhu
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
216
142
0.657
* Total Citation Counts Rankings
Rankings
1,284,513
13,505
134
Ranking Based On Selection: 21
Paul M. Nwokwu
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
205
182
0.888
Development Administration
Local Government Administration
Intergovernmental Relations
Financial
* Total Citation Counts Rankings
Rankings
1,310,147
14,043
139
Ranking Based On Selection: 22
Stephen N. Ukpai
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
193
168
0.870
* Total Citation Counts Rankings
Rankings
1,316,813
14,181
141
Ranking Based On Selection: 23
Nwite Sunday Christian
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
190
164
0.863
* Total Citation Counts Rankings
Rankings
1,347,592
14,856
148
Ranking Based On Selection: 24
Boniface N. Ukwah, Mls
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
177
130
0.734
Laboratory Medicine
Molecular Diagnosis/Epidemiology
Neglected Tropical Infectious Disease
* Total Citation Counts Rankings
Rankings
1,354,479
15,004
149
Ranking Based On Selection: 25
Cajetan Ikechukwu Ilo
Ebonyi State University
Abakaliki, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
174
150
0.862