Peggy Callahan

6 papers and 329 indexed citations i.

About

Peggy Callahan is a scholar working on Oncology, Pulmonary and Respiratory Medicine and Epidemiology. According to data from OpenAlex, Peggy Callahan has authored 6 papers receiving a total of 329 indexed citations (citations by other indexed papers that have themselves been cited), including 4 papers in Oncology, 3 papers in Pulmonary and Respiratory Medicine and 2 papers in Epidemiology. Recurrent topics in Peggy Callahan’s work include Colorectal Cancer Screening and Detection (4 papers), Gastric Cancer Management and Outcomes (3 papers) and Acute Kidney Injury Research (1 paper). Peggy Callahan is often cited by papers focused on Colorectal Cancer Screening and Detection (4 papers), Gastric Cancer Management and Outcomes (3 papers) and Acute Kidney Injury Research (1 paper). Peggy Callahan collaborates with scholars based in United States. Peggy Callahan's co-authors include Ajay Bansal, Amit Rastogi, Sachin Wani, Prateek Sharma, John Keighley, Vikas Singh, Rachel Cherian, Douglas H. McGregor, Prashant Pandya and Sharad C. Mathur and has published in prestigious journals such as Gastroenterology, The American Journal of Gastroenterology and Gastrointestinal Endoscopy.

In The Last Decade

Co-authorship network of co-authors of Peggy Callahan i

Fields of papers citing papers by Peggy Callahan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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.

Countries citing papers authored by Peggy Callahan

Since Specialization
Citations

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).

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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2025