Citation Rankings
Highly Cited Researchers
Asia Highly Cited Researchers Citation Medical and Health Sciences / General Surgery 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
hepatobiliary surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,041
25,117
0.411
* Total Citation Counts Rankings
Ranking Based On Selection :2
Surgery
Medical Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,722
30,231
0.543
* Total Citation Counts Rankings
Ranking Based On Selection :3
HBP surgery
Surgical Oncology
Hepatocellular carcinoma
GI stromal tumour
Brachytherapy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,901
13,985
0.520
* Total Citation Counts Rankings
Ranking Based On Selection :4
Esophageal and Upper Gastrointestinal Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,962
10,020
0.401
* Total Citation Counts Rankings
Ranking Based On Selection :5
Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,620
13,463
0.547
* Total Citation Counts Rankings
Ranking Based On Selection :6
Gastrointestinal Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,573
10,469
0.426
* Total Citation Counts Rankings
Ranking Based On Selection :7
Gastric Cancer
Surgery
Comprehensive Treatment
stomach
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,229
16,720
0.690
* Total Citation Counts Rankings
Ranking Based On Selection :8
Surgery
Gastric Cancer
GIST
Nutrition
Endocrine Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,378
7,151
0.306
* Total Citation Counts Rankings
Ranking Based On Selection :9
gastric cancer
minimally invasive surgery
robotic surgery
translational research
clinical trial
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,227
11,767
0.507
* Total Citation Counts Rankings
Ranking Based On Selection :10
Hepato-biliary and Pancreatic Surgery
Liver Transplantation
Surgical Infection
Surgical Nutrition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,770
7,396
0.356
* Total Citation Counts Rankings
Ranking Based On Selection :11
surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,124
5,929
0.295
* Total Citation Counts Rankings
Ranking Based On Selection :12
Colorectal cancer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,459
9,045
0.465
* Total Citation Counts Rankings
Ranking Based On Selection :13
General Surgery
Colon and Rectum
wound healing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,427
16,900
0.870
* Total Citation Counts Rankings
Ranking Based On Selection :14
Stomach cancer
gastrointestinal stromal tumour
peptic ulcer
upper GI surgery
endoscopy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,994
4,505
0.237
* Total Citation Counts Rankings
Ranking Based On Selection :15
Gastric Cancer
Surgery
Oncology
Chemotherapy
Medical engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,964
12,280
0.648
* Total Citation Counts Rankings
Ranking Based On Selection :16
Liver transplantation
liver cancer
pancreatic cancer
bioethics of organ transplantation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,897
8,134
0.481
* Total Citation Counts Rankings
Ranking Based On Selection :17
Breast cancer risk and outcome
Cancer epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,277
10,435
0.641
* Total Citation Counts Rankings
Ranking Based On Selection :18
Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,981
7,466
0.467
* Total Citation Counts Rankings
Ranking Based On Selection :19
hepatic/pancreatic/biliary neoplasms
neuroendocrine tumors
GIST
liver and kidney transplant
laparoscopic & robotic surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,306
9,303
0.650
* Total Citation Counts Rankings
Ranking Based On Selection :20
Surgery
Clinical Oncology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,441
4,436
0.330
* Total Citation Counts Rankings
Ranking Based On Selection :21
gastric cancer
esophageal cancer
morbid obesity
achalasia
advanced endoscopy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,440
7,622
0.567
* Total Citation Counts Rankings
Ranking Based On Selection :22
disaster medicine
surgery
human security
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,939
5,384
0.416
* Total Citation Counts Rankings
Ranking Based On Selection :23
surgery
oncology
breast cancer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,872
7,181
0.558
* Total Citation Counts Rankings
Ranking Based On Selection :24
Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,823
5,424
0.423
* Total Citation Counts Rankings
Ranking Based On Selection :25
surgery
oncology
pathology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,225
6,585
0.539
* Total Citation Counts Rankings
Rankings
7,273
47
13
Ranking Based On Selection: 1
Lau WY
Chinese University of Hong Kong
Central Ave, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,041
25,117
0.411
* Total Citation Counts Rankings
Rankings
8,424
21
1
Ranking Based On Selection: 2
Muhammad Farhan Khan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,722
30,231
0.543
Surgery
Medical Education
* Total Citation Counts Rankings
Rankings
26,418
167
2
Ranking Based On Selection: 3
Pierce Kah Hoe, Chow
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,901
13,985
0.520
HBP surgery
Surgical Oncology
Hepatocellular carcinoma
GI stromal tumour
Brachytherapy
* Total Citation Counts Rankings
Rankings
29,563
263
71
Ranking Based On Selection: 4
Simon Law
University of Hong Kong
Pok Fu Lam, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,962
10,020
0.401
Esophageal and Upper Gastrointestinal Surgery
* Total Citation Counts Rankings
Rankings
30,210
429
21
Ranking Based On Selection: 5
Michiaki Unno
Tohoku University
Sendai, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,620
13,463
0.547
* Total Citation Counts Rankings
Rankings
30,294
431
5
Ranking Based On Selection: 6
Yoshihiro Kakeji
Kobe University
Kobe, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,573
10,469
0.426
Gastrointestinal Surgery
* Total Citation Counts Rankings
Rankings
30,945
1,108
42
Ranking Based On Selection: 7
Jiafu Ji
Peking University
Beijing, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,229
16,720
0.690
Gastric Cancer
Surgery
Comprehensive Treatment
stomach
* Total Citation Counts Rankings
Rankings
32,599
285
74
Ranking Based On Selection: 8
Enders Kwok Wai Ng
Chinese University of Hong Kong
Central Ave, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,378
7,151
0.306
Surgery
Gastric Cancer
GIST
Nutrition
Endocrine Surgery
* Total Citation Counts Rankings
Rankings
32,879
295
2
Ranking Based On Selection: 9
Yw Kim|YW Kim, Y.-W. Kim
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,227
11,767
0.507
gastric cancer
minimally invasive surgery
robotic surgery
translational research
clinical trial
* Total Citation Counts Rankings
Rankings
38,465
553
1
Ranking Based On Selection: 10
Katsuhiko Yanaga
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,770
7,396
0.356
Hepato-biliary and Pancreatic Surgery
Liver Transplantation
Surgical Infection
Surgical Nutrition
* Total Citation Counts Rankings
Rankings
40,231
591
1
Ranking Based On Selection: 11
関本貢嗣
Kansai Medical University
Moriguchi, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,124
5,929
0.295
* Total Citation Counts Rankings
Rankings
42,113
416
33
Ranking Based On Selection: 12
Nam Kyu Kim
Yonsei University
Seoul, South Korea
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,459
9,045
0.465
* Total Citation Counts Rankings
Rankings
42,192
353
2
Ranking Based On Selection: 13
Somprakas Basu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,427
16,900
0.870
General Surgery
Colon and Rectum
wound healing
* Total Citation Counts Rankings
Rankings
43,447
368
95
Ranking Based On Selection: 14
Kent-Man Chu 朱建民
University of Hong Kong
Pok Fu Lam, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,994
4,505
0.237
Stomach cancer
gastrointestinal stromal tumour
peptic ulcer
upper GI surgery
endoscopy
* Total Citation Counts Rankings
Rankings
43,537
650
7
Ranking Based On Selection: 15
Yoshikawa Takaki, 吉川貴己
National Cancer Center
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,964
12,280
0.648
Gastric Cancer
Surgery
Oncology
Chemotherapy
Medical engineering
* Total Citation Counts Rankings
Rankings
50,956
423
109
Ranking Based On Selection: 16
See Ching Chan
University of Hong Kong
Pok Fu Lam, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,897
8,134
0.481
Liver transplantation
liver cancer
pancreatic cancer
bioethics of organ transplantation
* Total Citation Counts Rankings
Rankings
53,590
346
183
Ranking Based On Selection: 17
Mikael Hartman
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,277
10,435
0.641
Breast cancer risk and outcome
Cancer epidemiology
* Total Citation Counts Rankings
Rankings
54,980
357
4
Ranking Based On Selection: 18
London Lucien Ooi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,981
7,466
0.467
* Total Citation Counts Rankings
Rankings
63,560
415
6
Ranking Based On Selection: 19
Brian Kp Goh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,306
9,303
0.650
hepatic/pancreatic/biliary neoplasms
neuroendocrine tumors
GIST
liver and kidney transplant
laparoscopic & robotic surgery
* Total Citation Counts Rankings
Rankings
68,933
1,134
2
Ranking Based On Selection: 20
Hideaki Shimada
Toho University
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,441
4,436
0.330
Surgery
Clinical Oncology
* Total Citation Counts Rankings
Rankings
68,936
454
247
Ranking Based On Selection: 21
Jimmy So Bok Yan
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,440
7,622
0.567
gastric cancer
esophageal cancer
morbid obesity
achalasia
advanced endoscopy
* Total Citation Counts Rankings
Rankings
72,365
1,210
67
Ranking Based On Selection: 22
Shinichi Egawa
Tohoku University
Sendai, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,939
5,384
0.416
disaster medicine
surgery
human security
* Total Citation Counts Rankings
Rankings
72,845
888
2
Ranking Based On Selection: 23
Young Up Cho
Cha University
Pocheon, South Korea
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,872
7,181
0.558
surgery
oncology
breast cancer
* Total Citation Counts Rankings
Rankings
73,195
1,230
5
Ranking Based On Selection: 24
Shuji Isaji
Mie University
Tsu, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,823
5,424
0.423
* Total Citation Counts Rankings
Rankings
77,553
1,316
65
Ranking Based On Selection: 25
Tomoki Ebata
Nagoya University
Nagoya, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,225
6,585
0.539
surgery
oncology
pathology