Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Art, Design and Architecture, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences and Social Sciences and their 256 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
![John A Crump](https://cdn.adscientificindex.com/pictures/a3/1165.jpg)
Infectious diseases
medical microbiology
epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
98,292
69,340
0.705
![Tony Merriman](/user/assets/images/profile/no-profile-photo.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
144,048
68,802
0.478
![Sarah Derrett](https://cdn.adscientificindex.com/pictures/b5/130665.jpg)
injury
disability
quality of life
integrated care
equity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,947
31,299
0.570
![W Murray Thomson](https://cdn.adscientificindex.com/pictures/60/132719.jpg)
Dental epidemiology and public health
dental health services research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,805
28,492
0.461
![Rebecca Grainger](https://cdn.adscientificindex.com/pictures/8d/3884.jpg)
Rheumatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,148
28,487
0.546
![Kate M Scott](https://cdn.adscientificindex.com/pictures/6c/1231.jpg)
medicine
health sciences
psychology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,121
23,518
0.651
![David Fergusson](/user/assets/images/profile/no-profile-photo.png)
psychology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91,405
23,513
0.257
![Simon Hales](https://cdn.adscientificindex.com/pictures/24/131212.jpg)
Medical and Health Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,270
21,081
0.356
![Rachael McLean](https://cdn.adscientificindex.com/pictures/51/3883.jpg)
Public Health
Nutrition
Chronic Disease Epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,906
21,070
0.846
![Annemarei Ranta](/user/assets/images/profile/no-profile-photo.png)
stroke
neurology
health service delivery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,414
20,612
0.963
![Samiullah Khan](https://cdn.adscientificindex.com/pictures/bd/130539.jpg)
Limnology
Lake Ecosystems
Fatty acids in aquatic food webs
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,134
20,375
0.811
![William J Taylor](/user/assets/images/profile/no-profile-photo.png)
Gout
psoriatic arthritis
outcome measurement
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,588
18,562
0.426
![Robert Poulin](https://cdn.adscientificindex.com/pictures/11/65437.jpg)
Evolutionary ecology of parasitism
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,967
18,124
0.363
![Dirk De Ridder](https://cdn.adscientificindex.com/pictures/cb/121326.jpg)
tinnitus
pain
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,106
16,901
0.561
![Brett Delahunt](/user/assets/images/profile/no-profile-photo.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,610
13,248
0.419
![Martin Sellbom](https://cdn.adscientificindex.com/pictures/1f/1435.jpg)
psychopathy
antisocial personality disorder
personality disorders
MMPI-3
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,073
13,110
0.653
![David Bryant](https://cdn.adscientificindex.com/pictures/2d/2203.jpg)
Mathematics
Statistics and Evolutionary Genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,208
11,907
0.472
![Crispin Gardiner](https://cdn.adscientificindex.com/pictures/99/1469.jpg)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,211
11,237
0.233
![Joseph Boden](https://cdn.adscientificindex.com/pictures/d5/124600.jpg)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,820
11,160
0.450
![Peter Herbison](/user/assets/images/profile/no-profile-photo.png)
medical research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,609
11,062
0.237
![Robin aj smith](/user/assets/images/profile/no-profile-photo.png)
medicinal chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,036
10,977
0.289
![XC Morgan](/user/assets/images/profile/no-profile-photo.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,250
10,212
0.670
![Neil J Gemmell](https://cdn.adscientificindex.com/pictures/81/1517.jpg)
Evolutionary Biology
Genetics
Genomics
Reproductive Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,963
10,058
0.504
![Sean Coffey](/user/assets/images/profile/no-profile-photo.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,753
9,852
0.916
![Elisabeth Wells](/user/assets/images/profile/no-profile-photo.png)
alcohol
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,992
9,713
0.313
John A Crump
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
98,292
69,340
0.705
Infectious diseases
medical microbiology
epidemiology
Tony Merriman
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
144,048
68,802
0.478
Sarah Derrett
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,947
31,299
0.570
W Murray Thomson
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,805
28,492
0.461
Dental epidemiology and public health
dental health services research
Rebecca Grainger
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,148
28,487
0.546
Kate M Scott
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,121
23,518
0.651
medicine
health sciences
psychology
David Fergusson
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91,405
23,513
0.257
Simon Hales
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,270
21,081
0.356
Medical and Health Sciences
Rachael McLean
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,906
21,070
0.846
Public Health
Nutrition
Chronic Disease Epidemiology
Annemarei Ranta
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,414
20,612
0.963
stroke
neurology
health service delivery
Samiullah Khan
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,134
20,375
0.811
Limnology
Lake Ecosystems
Fatty acids in aquatic food webs
William J Taylor
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,588
18,562
0.426
Robert Poulin
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,967
18,124
0.363
Evolutionary ecology of parasitism
Dirk De Ridder
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,106
16,901
0.561
Brett Delahunt
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,610
13,248
0.419
Martin Sellbom
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,073
13,110
0.653
psychopathy
antisocial personality disorder
personality disorders
MMPI-3
David Bryant
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,208
11,907
0.472
Mathematics
Statistics and Evolutionary Genetics
Crispin Gardiner
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,211
11,237
0.233
Joseph Boden
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,820
11,160
0.450
Peter Herbison
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,609
11,062
0.237
Robin aj smith
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,036
10,977
0.289
XC Morgan
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,250
10,212
0.670
Neil J Gemmell
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,963
10,058
0.504
Evolutionary Biology
Genetics
Genomics
Reproductive Biology
Sean Coffey
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,753
9,852
0.916
Elisabeth Wells
University of Otago
North Dunedin, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,992
9,713
0.313