David P. Ryan

35.2k citations
423 papers · 17.1k indexed · 5 hit papers · h-index 62
  • Oncology top 0.1%
    • Pancreatic and Hepatic Oncology Research 104
    • Colorectal Cancer Treatments and Studies 90
    • Cancer Treatment and Pharmacology 32
    • Cancer Genomics and Diagnostics 56
  • Hepatology top 0.5%
    • Hepatocellular Carcinoma Treatment and Prognosis 29
    • Gastric Cancer Management and Outcomes 39
  • Epidemiology top 0.5%
    • Neuroendocrine Tumor Research Advances 42
    • Colorectal and Anal Carcinomas 37

David P. Ryan

405 papers receiving 16.7k citations

Hit Papers

Total Neoadjuvant Therapy With FOLFIRINOX Foll...362201120262016202150010001.5k

Peers

David P. Ryan
Comparison fields: 5 of 185
  • Oncology 9.9k
  • Cancer Research 3.1k
  • Hepatology 1.2k
  • Pulmonary and Respiratory Medicine 3.9k
  • Epidemiology 2.9k
Replace Jeffrey W. Clark with:
Jeffrey W. Clark United States
Philip S. Rosenberg United States
Justin Stebbing United Kingdom
Hys Ngan Hong Kong
Susan S. Devesa United States
Lu Wang China
Franco M. Muggia United States
Laurence Collette Belgium
Steven Piantadosi United States
Peter J. Selby United Kingdom
David P. Ryan relative to Jeffrey W. Clark United States Jeffrey W. Clark's profile →
Citations per field
00.5×1.5×
Jeffrey W. Clark · 1×
Citations per year

Countries citing papers authored by David P. Ryan

Since Specialization
Citations

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

Fields of papers citing papers by David P. Ryan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by David P. Ryan. 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 David P. Ryan. The network helps show where David P. Ryan may publish in the future.

Co-authorship network

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

All Works

20 of 20 papers shown
#Work
1 20250
2 202312
3 202330
4 20210
5 20213
6 202027
7 201921
8 201918
9 201710
10 2015138
11 201443
12 201355
13 201317
14 201287
15 20123
16 201126
17 201025
18
America and Iraq : Policy-making, Intervention and Regional Politics
20099
19 200668
20 2004250

About David P. Ryan

David P. Ryan is a scholar working on Oncology, Cancer Research and Hepatology, having authored 423 papers that have together received 17.1k indexed citations. Recurring topics across this work include Pancreatic and Hepatic Oncology Research (104 papers), Colorectal Cancer Treatments and Studies (90 papers), Cancer Genomics and Diagnostics (56 papers), Neuroendocrine Tumor Research Advances (42 papers), Gastric Cancer Management and Outcomes (39 papers), Colorectal and Anal Carcinomas (37 papers), Cancer Treatment and Pharmacology (32 papers) and Hepatocellular Carcinoma Treatment and Prognosis (29 papers). The work is most often cited by research in Oncology (9.9k citations), Cancer Research (3.1k citations) and Hepatology (1.2k citations). David P. Ryan has collaborated with scholars based in United States, Canada and Ireland. Frequent co-authors include Theodore S. Hong, Nabeel Bardeesy, Jeffrey W. Clark, Charles S. Fuchs, Lawrence S. Blaszkowsky, Andrew X. Zhu, Matthew H. Kulke, Peter C. Enzinger, Eunice L. Kwak and Robert J. Mayer. Their work appears in journals such as Journal of Clinical Oncology, The Oncologist, Cancer, Clinical Cancer Research and International Journal of Radiation Oncology*Biology*Physics.

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