Ronald J. Callahan
- Radiology, Nuclear Medicine and Imaging top 2%
- Pulmonary and Respiratory Medicine top 5%
- Surgery top 5%
- Cardiology and Cardiovascular Medicine top 5%
- Physiology top 10%
- Co-authors
- Alan J. FischmanJerry FroelichK.A. McKusickJosé G. VenegasR. Scott HarrisTilo WinklerGuido MuschH W Strauss
- Topics
- Radiopharmaceutical Chemistry and Applications (25 papers)Medical Imaging Techniques and Applications (18 papers)Medical Imaging and Pathology Studies (11 papers)
- Partner nations
- United StatesNetherlandsGermany
In The Last Decade
Ronald J. Callahan
63 papers receiving 2.5k citations
Peers
Comparison fields: 5 of 139
- Radiology, Nuclear Medicine and Imaging 794
- Pulmonary and Respiratory Medicine 772
- Surgery 588
- Cardiology and Cardiovascular Medicine 430
- Physiology 301
Countries citing papers authored by Ronald J. Callahan
This map shows the geographic impact of Ronald J. 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 Ronald J. Callahan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ronald J. Callahan more than expected).
Fields of papers citing papers by Ronald J. Callahan
This network shows the impact of papers produced by Ronald J. 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 Ronald J. Callahan. The network helps show where Ronald J. Callahan may publish in the future.
Co-authorship network of co-authors of Ronald J. Callahan
This figure shows the co-authorship network connecting the top 25 collaborators of Ronald J. Callahan. A scholar is included among the top collaborators of Ronald J. 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 Ronald J. Callahan. Ronald J. 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 | 25 | |
| 2 | 25 | |
| 3 | 66 | |
| 4 | 426 | |
| 5 | 4 | |
| 6 | 89 | |
| 7 | 41 | |
| 8 | 20 | |
| 9 | 2 | |
| 10 | 15 | |
| 11 | 3 | |
| 12 | 94 | |
| 13 | 5 | |
| 14 | 0 | |
| 15 | A REVIEW OF RADIOPHARMACEUTICALS OVER THE PAST DECADE: OVER THE HILLS AND THROUGH THE WOODS?? | 1 |
| 16 | 156 | |
| 17 | 10 | |
| 18 | 55 | |
| 19 | 82 | |
| 20 | A Multi-institutional In Vitro Evaluation of Commercial 99mTc Macroaggregated Albumin Kits | 3 |
About Ronald J. Callahan
Ronald J. Callahan is a scholar working on Radiology, Nuclear Medicine and Imaging, Pulmonary and Respiratory Medicine and Molecular Medicine, having authored 65 papers that have together received 2.6k indexed citations. Recurring topics across this work include Radiopharmaceutical Chemistry and Applications (25 papers), Medical Imaging Techniques and Applications (18 papers) and Medical Imaging and Pathology Studies (11 papers). The work is most often cited by research in Radiology, Nuclear Medicine and Imaging (794 citations), Pulmonary and Respiratory Medicine (772 citations) and Gastroenterology (117 citations). Ronald J. Callahan has collaborated with scholars based in United States, Netherlands and Germany. Frequent co-authors include Alan J. Fischman, Jerry Froelich, K.A. McKusick, José G. Venegas, R. Scott Harris, Tilo Winkler, Guido Musch, H W Strauss, Marcos F. Vidal Melo and H. William Strausś. Their work appears in journals such as Nature, New England Journal of Medicine and Circulation.
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.