Ashok Kumar

3.8k citations
128 papers · 2.5k · h-index 28

Impact in

  • Surgery top 2%
    • Cholangiocarcinoma and Gallbladder Cancer Studies
    • Pediatric Hepatobiliary Diseases and Treatments
    • Gallbladder and Bile Duct Disorders
    • Biliary and Gastrointestinal Fistulas

Papers in

    • Cholangiocarcinoma and Gallbladder Cancer Studies 26
    • Pediatric Hepatobiliary Diseases and Treatments 8
    • Esophageal and GI Pathology 5
    • Gallbladder and Bile Duct Disorders 20

Ashok Kumar

115 papers receiving 2.4k citations

Peers

Ashok Kumar
Comparison fields: 5 of 109
  • Surgery 1.2k
  • Pulmonary and Respiratory Medicine 740
  • Gastroenterology 103
  • Oncology 486
  • Cancer Research 236
Replace Maria Rosa Valvano with:
Maria Rosa Valvano Italy
Steven C. Cunningham United States
Carlo Castoro Italy
J. Klempnauer Germany
Zubin M. Bamboat United States
Alexandros Polychronidis Greece
J.M. Fernández Gómez Spain
Eric M. Webber Canada
Oliver W. Hakenberg Germany
Pierre Blanc France
Ashok Kumar relative to Maria Rosa Valvano Italy Maria Rosa Valvano's profile →
Citations per field
00.5×1.6×
Maria Rosa Valvano · 1×
Citations per year

Countries citing papers authored by Ashok Kumar

Since Specialization
Citations

This map shows the geographic impact of Ashok Kumar's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ashok Kumar with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ashok Kumar more than expected).

Fields of papers citing papers by Ashok Kumar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ashok Kumar. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ashok Kumar. The network helps show where Ashok Kumar may publish in the future.

Co-authors

The 25 scholars most cited alongside Ashok Kumar, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Ashok Kumar Line = papers co-authored together Ashok Kumar links everyone, so they are left out of the graph.

All Works

20 of 20 papers shown

Showing the 20 most-cited of 128 papers — load more, or switch the sort, to bring in the rest.

#Work
1 2017272
2 2015219
3 200272
4 200470
5 200359
6 200655
7 201055
8 200655
9 200451
10 201249
11 200647
12 201145
13 200644
14 199741
15 200641
16 199539
17 200738
18 200837
19 201035
20 200833

About Ashok Kumar

Ashok Kumar is a scholar working on Surgery, Pulmonary and Respiratory Medicine, Oncology, Molecular Biology and Cancer Research, having authored 128 papers that have together received 2.5k indexed citations. Recurring topics across this work include Cholangiocarcinoma and Gallbladder Cancer Studies (26 papers), Gallbladder and Bile Duct Disorders (20 papers), Pediatric Hepatobiliary Diseases and Treatments (8 papers), Gastrointestinal Tumor Research and Treatment (7 papers), Pancreatic and Hepatic Oncology Research (6 papers), MicroRNA in disease regulation (6 papers), Acute Lymphoblastic Leukemia research (5 papers) and Esophageal and GI Pathology (5 papers). The work is most often cited by research in Surgery (1.2k citations), Pulmonary and Respiratory Medicine (740 citations), Gastroenterology (103 citations), Oncology (486 citations) and Cancer Research (236 citations). Ashok Kumar has collaborated with scholars based in India, United States and Canada. Frequent co-authors include Rajan Saxena, Vinay K. Kapoor, Sadiq S. Sikora, Kiran Sharma, Annapurna Gupta, Aarti Sharma, Alka Yadav, Balraj Mittal, Anu Behari and Ambreen Asim. Their work appears in journals such as Tumor Biology, World Journal of Clinical Oncology, Journal of Hepato-Biliary-Pancreatic Surgery, Digestive Surgery and PLoS ONE.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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