World

Citation Rankings
Highly Cited Researchers

Highly Cited Researchers 459 Scientists Citation Rankings - 2025

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.

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Total 459 scientists
* Total Citation Counts Rankings
World Rank
9,644
Country Rank
53
Institution Rank: 1
Ranking Based On Selection: 1
Singapore
Bin Tean Teh
Bin Tean Teh
National Cancer Centre Singapore
Singapore , Singapore
Medical and Health Sciences / Urology
Translational Cancer Research (urological cancer
hepatobiliary cancer
breast fibroepithelial tumors)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,092
17,751
0.341
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
26,296
Country Rank
167
Institution Rank: 2
Ranking Based On Selection: 2
Singapore
Pierce Kah Hoe, Chow
Pierce Kah Hoe, Chow
National Cancer Centre Singapore
Singapore , Singapore
Medical and Health Sciences / General Surgery
HBP surgery
Surgical Oncology
Hepatocellular carcinoma
GI stromal tumour
Brachytherapy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,471
12,823
0.467
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
30,759
Country Rank
202
Institution Rank: 3
Ranking Based On Selection: 3
Singapore
Daniel Sw Ting
Daniel Sw Ting
National Cancer Centre Singapore
Singapore , Singapore
Others
Retina
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,724
23,126
0.935
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
55,552
Country Rank
363
Institution Rank: 4
Ranking Based On Selection: 4
Singapore
London Lucien Ooi
London Lucien Ooi
National Cancer Centre Singapore
Singapore , Singapore
Medical and Health Sciences / General Surgery
Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,161
6,492
0.402
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
56,669
Country Rank
370
Institution Rank: 5
Ranking Based On Selection: 5
Singapore
Twk Tan
Twk Tan
National Cancer Centre Singapore
Singapore , Singapore
Medical and Health Sciences / Radiation Oncology
radiation oncology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,881
4,505
0.284
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
63,203
Country Rank
414
Institution Rank: 6
Ranking Based On Selection: 6
Singapore
Brian Kp Goh
Brian Kp Goh
National Cancer Centre Singapore
Singapore , Singapore
Medical and Health Sciences / General Surgery
hepatic/pancreatic/biliary neoplasms
neuroendocrine tumors
GIST
liver and kidney transplant
laparoscopic & robotic surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,641
8,744
0.597
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
68,469
Country Rank
455
Institution Rank: 7
Ranking Based On Selection: 7
Singapore
Julian Thumboo
Julian Thumboo
National Cancer Centre Singapore
Singapore , Singapore
Medical and Health Sciences / Health Sciences
Health Service Research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,746
5,837
0.425
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
68,703
Country Rank
460
Institution Rank: 8
Ranking Based On Selection: 8
Singapore
Gavin Tan
Gavin Tan
National Cancer Centre Singapore
Singapore , Singapore
Medical and Health Sciences / Ophthalmology
ophthalmology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,732
11,532
0.840
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
69,209
Country Rank
466
Institution Rank: 9
Ranking Based On Selection: 9
Singapore
Low Jg
Low Jg
National Cancer Centre Singapore
Singapore , Singapore
Medical and Health Sciences / Infectious Diseases
Infectious diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,658
11,314
0.828
See All Rankings and Analysis

Showcase your academic strength and achievements to the world in the most effective way – join now and achieve results fast!

* Total Citation Counts Rankings
World Rank
74,903
Country Rank
501
Institution Rank: 10
Ranking Based On Selection: 10
Singapore
Salvatore Albani
Salvatore Albani
National Cancer Centre Singapore
Singapore , Singapore
Others
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,809
5,256
0.410
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
78,800
Country Rank
531
Institution Rank: 11
Ranking Based On Selection: 11
Singapore
Han Chong Toh
Han Chong Toh
National Cancer Centre Singapore
Singapore , Singapore
Medical and Health Sciences / Medical Oncology
Medical Oncology
Cancer Immunology and Immunotherapy
Clinical Trials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,278
6,405
0.522
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
78,938
Country Rank
534
Institution Rank: 12
Ranking Based On Selection: 12
Singapore
Shirin Kalimuddin
Shirin Kalimuddin
National Cancer Centre Singapore
Singapore , Singapore
Medical and Health Sciences / Infectious Diseases
Infectious Diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,258
12,006
0.979
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
101,313
Country Rank
666
Institution Rank: 13
Ranking Based On Selection: 13
Singapore
Lim Soon Thye
Lim Soon Thye
National Cancer Centre Singapore
Singapore , Singapore
Others
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,931
5,482
0.552
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
102,750
Country Rank
676
Institution Rank: 14
Ranking Based On Selection: 14
Singapore
David Sim
David Sim
National Cancer Centre Singapore
Singapore , Singapore
Others
Heart Failure
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,812
8,587
0.875
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
114,909
Country Rank
768
Institution Rank: 15
Ranking Based On Selection: 15
Singapore
Thean Yen Tan
Thean Yen Tan
National Cancer Centre Singapore
Singapore , Singapore
Medical and Health Sciences / Medical Microbiology
Clinical microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,911
5,583
0.627
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
125,565
Country Rank
846
Institution Rank: 16
Ranking Based On Selection: 16
Singapore
William Hwang
William Hwang
National Cancer Centre Singapore
Singapore , Singapore
Natural Sciences / Molecular Biology & Genetics
Hematopoietic Stem Cells
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,211
4,965
0.605
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
126,704
Country Rank
853
Institution Rank: 17
Ranking Based On Selection: 17
Singapore
Alex Sia
Alex Sia
National Cancer Centre Singapore
Singapore , Singapore
Medical and Health Sciences / Anesthesiology and Reanimation
Obstetric Anesthesia
Obstetric Anaesthesia
Anaesthesiology
Acute Pain
Regional Anaesthesia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,159
2,979
0.365
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
126,669
Country Rank
852
Institution Rank: 18
Ranking Based On Selection: 18
Singapore
Fabian Yap
Fabian Yap
National Cancer Centre Singapore
Singapore , Singapore
Medical and Health Sciences / Endocrinology and Metabolism
growth
nutrition
obesity
diabetes
endocrinology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,144
5,893
0.724
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
131,148
Country Rank
882
Institution Rank: 19
Ranking Based On Selection: 19
Singapore
Seng Jin Yeo
Seng Jin Yeo
National Cancer Centre Singapore
Singapore , Singapore
Others
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,895
4,144
0.525
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
133,949
Country Rank
904
Institution Rank: 20
Ranking Based On Selection: 20
Singapore
Tet Sen Howe
Tet Sen Howe
National Cancer Centre Singapore
Singapore , Singapore
Medical and Health Sciences / Orthopedics and Traumatology
Orthopaedics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,760
2,766
0.356
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
138,252
Country Rank
930
Institution Rank: 21
Ranking Based On Selection: 21
Singapore
Ying Ying Leung
Ying Ying Leung
National Cancer Centre Singapore
Singapore , Singapore
Medical and Health Sciences / Rheumatology
rheumatology
psoriatic arthritis
osteoarthritis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,522
4,775
0.635
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
143,017
Country Rank
960
Institution Rank: 22
Ranking Based On Selection: 22
Singapore
Ravindran Kanesvaran
Ravindran Kanesvaran
National Cancer Centre Singapore
Singapore , Singapore
Medical and Health Sciences / Urology
cancer
oncology
geriatric oncology
urology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,287
5,534
0.759
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
145,808
Country Rank
978
Institution Rank: 23
Ranking Based On Selection: 23
Singapore
Ngiap Chuan Tan
Ngiap Chuan Tan
National Cancer Centre Singapore
Singapore , Singapore
Others
Research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,155
5,425
0.758
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
154,387
Country Rank
1,020
Institution Rank: 24
Ranking Based On Selection: 24
Singapore
Ngai Nung Lo
Ngai Nung Lo
National Cancer Centre Singapore
Singapore , Singapore
Others
joint replacement surgery
orthopaedics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,775
3,003
0.443
See All Rankings and Analysis
* Total Citation Counts Rankings
World Rank
181,009
Country Rank
1,195
Institution Rank: 25
Ranking Based On Selection: 25
Singapore
Sze Huey Tan
Sze Huey Tan
National Cancer Centre Singapore
Singapore , Singapore
Medical and Health Sciences / Biostatistics
biostatistics
clinical trials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,793
2,836
0.490
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
9,644
Singapore
53
1
Ranking Based On Selection: 1
Bin Tean Teh
Bin Tean Teh
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,092
17,751
0.341
Medical and Health Sciences / Urology
Translational Cancer Research (urological cancer
hepatobiliary cancer
breast fibroepithelial tumors)
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
26,296
Singapore
167
2
Ranking Based On Selection: 2
Pierce Kah Hoe, Chow
Pierce Kah Hoe, Chow
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,471
12,823
0.467
Medical and Health Sciences / General Surgery
HBP surgery
Surgical Oncology
Hepatocellular carcinoma
GI stromal tumour
Brachytherapy
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
30,759
Singapore
202
3
Ranking Based On Selection: 3
Daniel Sw Ting
Daniel Sw Ting
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,724
23,126
0.935
Others
Retina
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
55,552
Singapore
363
4
Ranking Based On Selection: 4
London Lucien Ooi
London Lucien Ooi
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,161
6,492
0.402
Medical and Health Sciences / General Surgery
Surgery
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
56,669
Singapore
370
5
Ranking Based On Selection: 5
Twk Tan
Twk Tan
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,881
4,505
0.284
Medical and Health Sciences / Radiation Oncology
radiation oncology
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
63,203
Singapore
414
6
Ranking Based On Selection: 6
Brian Kp Goh
Brian Kp Goh
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,641
8,744
0.597
Medical and Health Sciences / General Surgery
hepatic/pancreatic/biliary neoplasms
neuroendocrine tumors
GIST
liver and kidney transplant
laparoscopic & robotic surgery
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
68,469
Singapore
455
7
Ranking Based On Selection: 7
Julian Thumboo
Julian Thumboo
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,746
5,837
0.425
Medical and Health Sciences / Health Sciences
Health Service Research
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
68,703
Singapore
460
8
Ranking Based On Selection: 8
Gavin Tan
Gavin Tan
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,732
11,532
0.840
Medical and Health Sciences / Ophthalmology
ophthalmology
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
69,209
Singapore
466
9
Ranking Based On Selection: 9
Low Jg
Low Jg
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,658
11,314
0.828
Medical and Health Sciences / Infectious Diseases
Infectious diseases
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
74,903
Singapore
501
10
Ranking Based On Selection: 10
Salvatore Albani
Salvatore Albani
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,809
5,256
0.410
Others
See All Rankings and Analysis

Showcase your academic strength and achievements to the world in the most effective way – join now and achieve results fast!

* Total Citation Counts Rankings
Rankings
78,800
Singapore
531
11
Ranking Based On Selection: 11
Han Chong Toh
Han Chong Toh
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,278
6,405
0.522
Medical and Health Sciences / Medical Oncology
Medical Oncology
Cancer Immunology and Immunotherapy
Clinical Trials
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
78,938
Singapore
534
12
Ranking Based On Selection: 12
Shirin Kalimuddin
Shirin Kalimuddin
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,258
12,006
0.979
Medical and Health Sciences / Infectious Diseases
Infectious Diseases
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
101,313
Singapore
666
13
Ranking Based On Selection: 13
Lim Soon Thye
Lim Soon Thye
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,931
5,482
0.552
Others
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
102,750
Singapore
676
14
Ranking Based On Selection: 14
David Sim
David Sim
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,812
8,587
0.875
Others
Heart Failure
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
114,909
Singapore
768
15
Ranking Based On Selection: 15
Thean Yen Tan
Thean Yen Tan
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,911
5,583
0.627
Medical and Health Sciences / Medical Microbiology
Clinical microbiology
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
125,565
Singapore
846
16
Ranking Based On Selection: 16
William Hwang
William Hwang
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,211
4,965
0.605
Natural Sciences / Molecular Biology & Genetics
Hematopoietic Stem Cells
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
126,704
Singapore
853
17
Ranking Based On Selection: 17
Alex Sia
Alex Sia
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,159
2,979
0.365
Medical and Health Sciences / Anesthesiology and Reanimation
Obstetric Anesthesia
Obstetric Anaesthesia
Anaesthesiology
Acute Pain
Regional Anaesthesia
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
126,669
Singapore
852
18
Ranking Based On Selection: 18
Fabian Yap
Fabian Yap
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,144
5,893
0.724
Medical and Health Sciences / Endocrinology and Metabolism
growth
nutrition
obesity
diabetes
endocrinology
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
131,148
Singapore
882
19
Ranking Based On Selection: 19
Seng Jin Yeo
Seng Jin Yeo
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,895
4,144
0.525
Others
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
133,949
Singapore
904
20
Ranking Based On Selection: 20
Tet Sen Howe
Tet Sen Howe
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,760
2,766
0.356
Medical and Health Sciences / Orthopedics and Traumatology
Orthopaedics
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
138,252
Singapore
930
21
Ranking Based On Selection: 21
Ying Ying Leung
Ying Ying Leung
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,522
4,775
0.635
Medical and Health Sciences / Rheumatology
rheumatology
psoriatic arthritis
osteoarthritis
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
143,017
Singapore
960
22
Ranking Based On Selection: 22
Ravindran Kanesvaran
Ravindran Kanesvaran
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,287
5,534
0.759
Medical and Health Sciences / Urology
cancer
oncology
geriatric oncology
urology
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
145,808
Singapore
978
23
Ranking Based On Selection: 23
Ngiap Chuan Tan
Ngiap Chuan Tan
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,155
5,425
0.758
Others
Research
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
154,387
Singapore
1,020
24
Ranking Based On Selection: 24
Ngai Nung Lo
Ngai Nung Lo
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,775
3,003
0.443
Others
joint replacement surgery
orthopaedics
See All Rankings and Analysis
* Total Citation Counts Rankings
Rankings
181,009
Singapore
1,195
25
Ranking Based On Selection: 25
Sze Huey Tan
Sze Huey Tan
National Cancer Centre Singapore Singapore, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,793
2,836
0.490
Medical and Health Sciences / Biostatistics
biostatistics
clinical trials
See All Rankings and Analysis