J Callaghan
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- Gastrointestinal Tumor Research and Treatment 2
- Gastroesophageal reflux and treatments 1
- Gastrointestinal motility and disorders 1
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- Inflammatory Bowel Disease 3
- Coagulation, Bradykinin, Polyphosphates, and Angioedema 1
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- Gastric Cancer Management and Outcomes 2
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- Helicobacter pylori-related gastroenterology studies 2
- Enhanced Recovery After Surgery 1
- Co-authors
- Efrem ErenLouise DowneyFraser CummingsJulia L. WrightJames NealePraful PatelG. Corbett-FeeneyMartin Cormican
- Journals
- European Journal of Gastroenterology & Hepatology (1 paper)Journal of Clinical Microbiology (1 paper)Journal of Crohn s and Colitis (1 paper)
- Partner nations
- United KingdomIrelandUnited States
In The Last Decade
J Callaghan
10 papers receiving 209 citations
Peers
Comparison fields: 5 of 48
- Immunology 117
- Gastroenterology 18
- Pediatrics, Perinatology and Child Health 61
- Economics and Econometrics 51
- Infectious Diseases 29
Countries citing papers authored by J Callaghan
This map shows the geographic impact of J Callaghan'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 J Callaghan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J Callaghan more than expected).
Fields of papers citing papers by J Callaghan
This network shows the impact of papers produced by J Callaghan. 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 J Callaghan. The network helps show where J Callaghan may publish in the future.
Co-authorship network
The 20 scholars most cited alongside J Callaghan, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.
All Works
| # | Work | ||
|---|---|---|---|
| 1 | 2017 | 124 | |
| 2 | 2016 | 6 | |
| 3 | 2015 | 7 | |
| 4 | 2013 | 36 | |
| 5 | 2012 | 3 | |
| 6 | 2002 | 21 | |
| 7 | Lyme disease and glomerulonephritis. | 1999 | 11 |
| 8 | Surgery for Crohn's disease. | 1993 | 2 |
| 9 | Primary gastric lymphoma: incidence and role of surgery. | 1989 | 2 |
| 10 | Acute cholecystitis following unrelated surgical operations. | 1972 | 1 |
| 11 | Giant jejunal diverticulosis: a rare cause of massive upper gastro-intestinal hemorrhage. | 1971 | 1 |
About J Callaghan
J Callaghan is a scholar working on Gastroenterology, Surgery, Parasitology, Small Animals and Genetics, having authored 11 papers that have together received 214 indexed citations. Recurring topics across this work include Inflammatory Bowel Disease (3 papers), Gastrointestinal Tumor Research and Treatment (2 papers), Gastric Cancer Management and Outcomes (2 papers), Helicobacter pylori-related gastroenterology studies (2 papers), Gastroesophageal reflux and treatments (1 paper), Coagulation, Bradykinin, Polyphosphates, and Angioedema (1 paper), Enhanced Recovery After Surgery (1 paper) and Gastrointestinal motility and disorders (1 paper). The work is most often cited by research in Immunology (117 citations), Gastroenterology (18 citations), Pediatrics, Perinatology and Child Health (61 citations), Economics and Econometrics (51 citations) and Infectious Diseases (29 citations). J Callaghan has collaborated with scholars based in United Kingdom, Ireland and United States. Frequent co-authors include Efrem Eren, Louise Downey, Fraser Cummings, Julia L. Wright, James Neale, Praful Patel, G. Corbett-Feeney, Martin Cormican, Brendan D. Kelly and S Parry. Their work appears in journals such as European Journal of Gastroenterology & Hepatology, Journal of Clinical Microbiology, Journal of Crohn s and Colitis, Archives of Disease in Childhood and Frontline Gastroenterology.
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.