Nagappan Kumar

850 citations
31 papers · 292 indexed · h-index 11

Impact in

    • Renal Transplantation Outcomes and Treatments
  • Hepatology top 10%
    • Liver Disease and Transplantation
    • Hepatocellular Carcinoma Treatment and Prognosis

Papers in

    • Hepatocellular Carcinoma Treatment and Prognosis 4
    • Liver Disease and Transplantation 2
    • Hip and Femur Fractures 3
    • Organ Transplantation Techniques and Outcomes 3
    • Congenital Anomalies and Fetal Surgery 3
    • Pancreatitis Pathology and Treatment 2

Nagappan Kumar

27 papers receiving 283 citations

Peers

Nagappan Kumar
Comparison fields: 5 of 63
  • Transplantation 40
  • Hepatology 79
  • Surgery 157
  • Anesthesiology and Pain Medicine 14
  • Pulmonary and Respiratory Medicine 60
Replace Ahmed M. Elsabbagh with:
Ahmed M. Elsabbagh United States
G.S. Kim South Korea
W. Rödiger Germany
A Corti Italy
Aparna Rege United States
Patricia Loi Belgium
Stefano Saad Germany
Jeffrey S. Sager United States
Douglas R. Murken United States
Marcelo Antonio Pinheiro Braga Brazil
Nagappan Kumar relative to Ahmed M. Elsabbagh United States Ahmed M. Elsabbagh's profile →
Citations per field
00.5×2.8×
Ahmed M. Elsabbagh · 1×
Citations per year

Countries citing papers authored by Nagappan Kumar

Since Specialization
Citations

This map shows the geographic impact of Nagappan 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 Nagappan Kumar with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Nagappan Kumar more than expected).

Fields of papers citing papers by Nagappan Kumar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Nagappan 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 Nagappan Kumar. The network helps show where Nagappan Kumar may publish in the future.

Co-authorship network

The 25 scholars most cited alongside Nagappan 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 Nagappan Kumar Line = papers co-authored together Nagappan Kumar links everyone, so they are left out of the graph.

All Works

20 of 20 papers shown
#Work
1 20250
2 20244
3 20231
4 20231
5 202312
6 20220
7 20221
8 20213
9 20210
10 20181
11 20111
12 200948
13 200933
14 20074
15 200715
16 20076
17 200324
18 200319
19 200212
20 200012

About Nagappan Kumar

Nagappan Kumar is a scholar working on Hepatology, Surgery, Transplantation, Pulmonary and Respiratory Medicine and Geriatrics and Gerontology, having authored 31 papers that have together received 292 indexed citations. Recurring topics across this work include Hepatocellular Carcinoma Treatment and Prognosis (4 papers), Gallbladder and Bile Duct Disorders (4 papers), Hip and Femur Fractures (3 papers), Organ Transplantation Techniques and Outcomes (3 papers), Congenital Anomalies and Fetal Surgery (3 papers), Colorectal Cancer Treatments and Studies (3 papers), Pancreatitis Pathology and Treatment (2 papers) and Liver Disease and Transplantation (2 papers). The work is most often cited by research in Transplantation (40 citations), Hepatology (79 citations), Surgery (157 citations), Anesthesiology and Pain Medicine (14 citations) and Pulmonary and Respiratory Medicine (60 citations). Nagappan Kumar has collaborated with scholars based in United Kingdom, Canada and United States. Frequent co-authors include D.Ll. Cochlin, Ceri Beaton, Argiris Asderakis, Rafael Chavez, Patrick McKiernan, W. A. Jurewicz, Khalid Sharif, Jean de Ville de Goyet, Philip John and Michelle Orme. Their work appears in journals such as Langenbeck s Archives of Surgery, HPB, Liver Transplantation, Annals of Surgery and Postgraduate Medical Journal.

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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2026