Peggy Callahan
- Oncology top 10%
- Pulmonary and Respiratory Medicine top 10%
- Surgery
- Pathology and Forensic Medicine
- Epidemiology
- Co-authors
- Ajay BansalPrateek SharmaAmit RastogiSachin WaniJohn KeighleyVikas SinghDouglas H. McGregorRachel Cherian
- Topics
- Colorectal Cancer Screening and Detection (4 papers)Gastric Cancer Management and Outcomes (3 papers)Radiomics and Machine Learning in Medical Imaging (1 paper)
- Partner nations
- United States
In The Last Decade
Peggy Callahan
6 papers receiving 327 citations
Peers
Comparison fields: 5 of 23
- Oncology 306
- Pulmonary and Respiratory Medicine 271
- Surgery 172
- Pathology and Forensic Medicine 27
- Epidemiology 20
Countries citing papers authored by Peggy Callahan
This map shows the geographic impact of Peggy Callahan'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 Peggy Callahan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Peggy Callahan more than expected).
Fields of papers citing papers by Peggy Callahan
This network shows the impact of papers produced by Peggy Callahan. 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 Peggy Callahan. The network helps show where Peggy Callahan may publish in the future.
Co-authorship network of co-authors of Peggy Callahan
This figure shows the co-authorship network connecting the top 25 collaborators of Peggy Callahan. A scholar is included among the top collaborators of Peggy Callahan based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Peggy Callahan. Peggy Callahan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 137 | |
| 2 | 85 | |
| 3 | 111 | |
| 4 | 1 | |
| 5 | 3 | |
| 6 | 1 |
About Peggy Callahan
Peggy Callahan is a scholar working on Oncology, Nephrology and Emergency Medical Services, having authored 6 papers that have together received 338 indexed citations. Recurring topics across this work include Colorectal Cancer Screening and Detection (4 papers), Gastric Cancer Management and Outcomes (3 papers) and Radiomics and Machine Learning in Medical Imaging (1 paper). The work is most often cited by research in Oncology (306 citations), Pulmonary and Respiratory Medicine (271 citations) and Surgery (172 citations). Peggy Callahan has collaborated with scholars based in United States. Frequent co-authors include Ajay Bansal, Prateek Sharma, Amit Rastogi, Sachin Wani, John Keighley, Vikas Singh, Douglas H. McGregor, Rachel Cherian, Prashant Pandya and Sharad C. Mathur. Their work appears in journals such as Gastroenterology, The American Journal of Gastroenterology and Gastrointestinal Endoscopy.
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.