The "AD Scientific Index" analyses the academic work of scientists using the H-index, i10 index and number of citations, and provides results that can be used to evaluate the productivity and efficiency of individuals and institutions. In addition to ranking according to "total H-index" for individuals and institutions, you can also see the ranking and analyses according to "last 6 years H-index"and Subject Rankings.
![Pierce Kah Hoe, Chow](https://cdn.adscientificindex.com/pictures/f3/4690055.jpg)
HBP surgery
Surgical Oncology
Hepatocellular carcinoma
GI stromal tumour
Brachytherapy
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
87
57
0.655
![London Lucien Ooi](/user/assets/images/profile/no-profile-photo.png)
Surgery
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
68
44
0.647
![Brian Kp Goh](https://cdn.adscientificindex.com/pictures/1e/4689788.jpg)
hepatic/pancreatic/biliary neoplasms
neuroendocrine tumors
GIST
liver and kidney transplant
laparoscopic & robotic surgery
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
65
45
0.692
![Mikael Hartman](/user/assets/images/profile/no-profile-photo.png)
Breast cancer risk and outcome
Cancer epidemiology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
58
47
0.810
![Jimmy So Bok Yan](https://cdn.adscientificindex.com/pictures/77/360966.jpg)
gastric cancer
esophageal cancer
morbid obesity
achalasia
advanced endoscopy
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
57
44
0.772
![Shelat Vishal](https://cdn.adscientificindex.com/pictures/ba/4965310.jpg)
surgery
laparoscopy
robotic
hepatobiliary
pancreatic
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
45
41
0.911
![Asim Shabbir](/user/assets/images/profile/no-profile-photo.png)
Surgery
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
42
37
0.881
![Chung Yip Chan](https://cdn.adscientificindex.com/pictures/57/4688068.jpg)
Liver transplant
laparascopic surgery
liver cancer
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
38
33
0.868
![Varut Lohsiriwat](https://cdn.adscientificindex.com/pictures/66/4988673.jpg)
Colorectal surgery
Proctology
ERAS
Surgical infection
Surgical Nutrition
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
38
28
0.737
![Ong Hock Soo](https://cdn.adscientificindex.com/pictures/0c/4690037.jpg)
General Surgery
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
37
21
0.568
![Ridzuan Farouk](/user/assets/images/profile/no-profile-photo.png)
surgery
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
37
16
0.432
![George Mathew](/user/assets/images/profile/no-profile-photo.png)
Gastrointestinal surgery
Cancer Biology research
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
33
19
0.576
![Jiong Wei Wang](https://cdn.adscientificindex.com/pictures/b5/360972.jpg)
Innate immunity
extracellular vesicles
Nanomedicine
and cardiovascular diseases
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
32
30
0.938
![Sumadi Lukman Anwar](https://cdn.adscientificindex.com/pictures/ba/465550.jpg)
oncology
genetics
epigenetics
breast cancer
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
31
29
0.935
![Kenneth YY Kok](https://cdn.adscientificindex.com/pictures/b4/418437.jpg)
General Surgery
Surgical Oncology
Laparoscopic Surgery
Medical Education
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
31
22
0.710
![Min Hoe Chew](https://cdn.adscientificindex.com/pictures/88/4690005.jpg)
Colorectal Surgery
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
30
21
0.700
![Kow Alfred Wei Chieh](https://cdn.adscientificindex.com/pictures/04/844703.jpg)
Hepatobilioary Surgery and Liver Transplantation
Surgical Oncology
Geriatric Surgery
Medical Education
Technology in Educati
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
28
22
0.786
![Visnu Lohsiriwat](https://cdn.adscientificindex.com/pictures/14/4988681.jpg)
breast surgery
cancer
reconstruction
cosmetic
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
28
19
0.679
![Choon Seng Chong](/user/assets/images/profile/no-profile-photo.png)
Colorectal Surgery
TaTME
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
27
24
0.889
![Kee Yuan Ngiam](https://cdn.adscientificindex.com/pictures/91/844746.jpg)
Endocrine surgery
Artificial Intelligence
Big Data analytics
Bariatric and Metabolic Surgery
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
24
23
0.958
![Richard Sim](/user/assets/images/profile/no-profile-photo.png)
Colorectal Surgery
Minimally Invasive Surgery
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
23
15
0.652
![Ian Wee Jun Yan](https://cdn.adscientificindex.com/pictures/e7/4986161.jpg)
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
22
21
0.955
![Mtc Wong](/user/assets/images/profile/no-profile-photo.png)
colorectal surgery
incontinence
minimally invasive
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
21
13
0.619
![G Tan](/user/assets/images/profile/no-profile-photo.png)
Surgical Oncology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
20
17
0.850
![Chin-Ann Johnny Ong](https://cdn.adscientificindex.com/pictures/a4/4689804.jpg)
Surgical Oncology
GI tumours
Peritoneal Carcinomatosis
Sarcoma
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
20
17
0.850
Pierce Kah Hoe, Chow
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
87
57
0.655
HBP surgery
Surgical Oncology
Hepatocellular carcinoma
GI stromal tumour
Brachytherapy
London Lucien Ooi
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
68
44
0.647
Brian Kp Goh
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
65
45
0.692
hepatic/pancreatic/biliary neoplasms
neuroendocrine tumors
GIST
liver and kidney transplant
laparoscopic & robotic surgery
Mikael Hartman
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
58
47
0.810
Breast cancer risk and outcome
Cancer epidemiology
Jimmy So Bok Yan
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
57
44
0.772
gastric cancer
esophageal cancer
morbid obesity
achalasia
advanced endoscopy
Shelat Vishal
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
45
41
0.911
surgery
laparoscopy
robotic
hepatobiliary
pancreatic
Asim Shabbir
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
42
37
0.881
Chung Yip Chan
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
38
33
0.868
Liver transplant
laparascopic surgery
liver cancer
Varut Lohsiriwat
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
38
28
0.737
Colorectal surgery
Proctology
ERAS
Surgical infection
Surgical Nutrition
Ong Hock Soo
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
37
21
0.568
Ridzuan Farouk
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
37
16
0.432
George Mathew
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
33
19
0.576
Gastrointestinal surgery
Cancer Biology research
Jiong Wei Wang
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
32
30
0.938
Innate immunity
extracellular vesicles
Nanomedicine
and cardiovascular diseases
Sumadi Lukman Anwar
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
31
29
0.935
oncology
genetics
epigenetics
breast cancer
Kenneth YY Kok
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
31
22
0.710
General Surgery
Surgical Oncology
Laparoscopic Surgery
Medical Education
Min Hoe Chew
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
30
21
0.700
Kow Alfred Wei Chieh
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
28
22
0.786
Hepatobilioary Surgery and Liver Transplantation
Surgical Oncology
Geriatric Surgery
Medical Education
Technology in Educati
Visnu Lohsiriwat
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
28
19
0.679
breast surgery
cancer
reconstruction
cosmetic
Choon Seng Chong
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
27
24
0.889
Colorectal Surgery
TaTME
Kee Yuan Ngiam
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
24
23
0.958
Endocrine surgery
Artificial Intelligence
Big Data analytics
Bariatric and Metabolic Surgery
Richard Sim
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
23
15
0.652
Colorectal Surgery
Minimally Invasive Surgery
Ian Wee Jun Yan
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
22
21
0.955
Mtc Wong
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
21
13
0.619
colorectal surgery
incontinence
minimally invasive
G Tan
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
20
17
0.850
Chin-Ann Johnny Ong
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
20
17
0.850
Surgical Oncology
GI tumours
Peritoneal Carcinomatosis
Sarcoma