William S. Harmsen

44.2k citations
612 papers · 30.9k indexed · 9 hit papers · h-index 96
  • Surgery top 0.02%
    • Total Knee Arthroplasty Outcomes 42
    • Orthopaedic implants and arthroplasty 39
    • Orthopedic Infections and Treatments 28
  • Epidemiology top 0.05%
    • Microscopic Colitis 79
  • Genetics top 0.05%
    • Inflammatory Bowel Disease 90
  • Oncology top 0.2%
    • Colorectal Cancer Surgical Treatments 29
    • Pancreatic and Hepatic Oncology Research 29
    • Gastric Cancer Management and Outcomes 41

William S. Harmsen

583 papers receiving 30.0k citations

Hit Papers

Factors Predicting R...2841998202620072016250500750

Peers

William S. Harmsen
Comparison fields: 5 of 174
  • Gastroenterology 2.3k
  • Surgery 15.3k
  • Epidemiology 10.3k
  • Genetics 7.7k
  • Oncology 5.6k
Replace Duane M. Ilstrup with:
Duane M. Ilstrup United States
Edward V. Loftus United States
Wim C.J. Hop Netherlands
Cathy D. Schleck United States
Yves Panís France
David T. Rubin United States
Bruce E. Sands United States
Peter Higgins United States
Gert Van Assche Belgium
Séverine Vermeire Belgium
William S. Harmsen relative to Duane M. Ilstrup United States Duane M. Ilstrup's profile →
Citations per field
00.5×5.5×
Duane M. Ilstrup · 1×
Citations per year

Countries citing papers authored by William S. Harmsen

Since Specialization
Citations

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

Fields of papers citing papers by William S. Harmsen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by William S. Harmsen. 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 William S. Harmsen. The network helps show where William S. Harmsen may publish in the future.

Co-authorship network

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

All Works

20 of 20 papers shown
#Work
1 20250
2 20250
3 20247
4 20241
5 20244
6 20246
7 20230
8 202316
9 20232
10 202215
11 20225
12 20212
13 202020
14 20197
15 201871
16 20181
17 20171
18 2016148
19 201330
20 20131

About William S. Harmsen

William S. Harmsen is a scholar working on Gastroenterology, Surgery and Hepatology, having authored 612 papers that have together received 30.9k indexed citations. Recurring topics across this work include Inflammatory Bowel Disease (90 papers), Microscopic Colitis (79 papers), Total Knee Arthroplasty Outcomes (42 papers), Gastric Cancer Management and Outcomes (41 papers), Orthopaedic implants and arthroplasty (39 papers), Colorectal Cancer Surgical Treatments (29 papers), Pancreatic and Hepatic Oncology Research (29 papers) and Orthopedic Infections and Treatments (28 papers). The work is most often cited by research in Gastroenterology (2.3k citations), Surgery (15.3k citations) and Epidemiology (10.3k citations). William S. Harmsen has collaborated with scholars based in United States, Canada and Thailand. Frequent co-authors include Edward V. Loftus, Alan R. Zinsmeister, William J. Sandborn, William J. Tremaine, Cathy D. Schleck, Daniel J. Berry, Duane M. Ilstrup, C. Daniel Johnson, Joel G. Fletcher and William A. Faubion. Their work appears in journals such as JAMA, Circulation and Journal of Clinical Oncology.

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.

Explore authors with similar magnitude of impact

Rankless by CCL
2026