Peter J. Ryan

962 citations
55 papers · 740 · h-index 14

Impact in

  • Surgery top 10%
    • Diverticular Disease and Complications
    • Anorectal Disease Treatments and Outcomes
    • Gastrointestinal disorders and treatments
    • Colorectal and Anal Carcinomas
    • Appendicitis Diagnosis and Management

Papers in

    • Gastrointestinal disorders and treatments 10
    • Diverticular Disease and Complications 9
    • Anorectal Disease Treatments and Outcomes 7
    • Intestinal and Peritoneal Adhesions 5
    • Esophageal and GI Pathology 4
    • Hernia repair and management 4
    • Surgical Sutures and Adhesives 3

Peter J. Ryan

50 papers receiving 640 citations

Peers

Peter J. Ryan
Comparison fields: 5 of 80
  • Surgery 489
  • Emergency Medicine 84
  • Otorhinolaryngology 39
  • Rheumatology 59
  • Oncology 101
Replace Luis F. Urdaneta with:
Luis F. Urdaneta United States
Erick R. Ratzer United States
Atıl Çakmak Türkiye
Russell Sage Boles United States
Robert Bruce Sawyer United States
Donald E. Ross Australia
Gilles Grosdidier France
F Parı́s Spain
Carl W. Konvolinka United States
Jack Kaufman United States
Peter J. Ryan relative to Luis F. Urdaneta United States Luis F. Urdaneta's profile →
Citations per field
00.5×5×10×13×
Luis F. Urdaneta · 1×
Citations per year

Countries citing papers authored by Peter J. Ryan

Since Specialization
Citations

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

Fields of papers citing papers by Peter J. Ryan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

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

All Works

20 of 20 papers shown

Showing the 20 most-cited of 55 papers — load more, or switch the sort, to bring in the rest.

#Work
1 1994119
2 195875
3 200667
4 199666
5 197930
6 198329
7 198228
8
Effect of epidural and general anaesthesia compared with general anaesthesia alone in large bowel anastomoses. A prospective study.
199226
9 201819
10
Surgery for abdominal emergencies.
196017
11 197015
12 199115
13 202114
14 198014
15
Two kinds of diverticular disease.
199113
16 199213
17 197913
18 199112
19 201811
20 198010

About Peter J. Ryan

Peter J. Ryan is a scholar working on Surgery, Gastroenterology, Emergency Medicine, Otorhinolaryngology and Pulmonary and Respiratory Medicine, having authored 55 papers that have together received 740 indexed citations. Recurring topics across this work include Gastrointestinal disorders and treatments (10 papers), Diverticular Disease and Complications (9 papers), Anorectal Disease Treatments and Outcomes (7 papers), Colorectal Cancer Surgical Treatments (5 papers), Intestinal and Peritoneal Adhesions (5 papers), Esophageal and GI Pathology (4 papers), Hernia repair and management (4 papers) and Surgical Sutures and Adhesives (3 papers). The work is most often cited by research in Surgery (489 citations), Emergency Medicine (84 citations), Otorhinolaryngology (39 citations), Rheumatology (59 citations) and Oncology (101 citations). Peter J. Ryan has collaborated with scholars based in Australia, South Korea and United States. Frequent co-authors include Brian T. Collopy, John Mackay, Rodney J. Woods, James O. Keck, David Murray Roder, Nicole L. Pratt, Richard Townsend Gun, Shu Kuramoto, Nirmal P. Patel and Cameron Platell. Their work appears in journals such as The Medical Journal of Australia, Diseases of the Colon & Rectum, British journal of surgery, Otology & Neurotology and Occupational and Environmental Medicine.

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