Richard Hagan
- Hepatology top 5%
- Hepatitis C virus research 4
- Virology top 10%
- Immunology top 10%
- T-cell and B-cell Immunology 6
- Immune Cell Function and Interaction 4
- Psoriasis: Treatment and Pathogenesis 2
- Rheumatology top 10%
- Systemic Lupus Erythematosus Research 3
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- Hepatitis B Virus Studies 2
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- Multiple Sclerosis Research Studies 3
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- Animal Virus Infections Studies 2
- Co-authors
- Emer LawlorSusan McKiernanJohn E. HegartyMichael P. CurryNiamh NolanG. S. A. McDonaldDermot KelleherAnne Walsh
- Cited by
- HepatologyVirologyImmunology
- Journals
- Proceedings of the National Academy of Sciences (1 paper)Gastroenterology (1 paper)Hepatology (1 paper)
- Partner nations
- IrelandUnited KingdomUnited States
In The Last Decade
Richard Hagan
14 papers receiving 517 citations
Peers
Comparison fields: 5 of 60
- Hepatology 269
- Virology 60
- Immunology 249
- Rheumatology 83
- Epidemiology 188
Countries citing papers authored by Richard Hagan
This map shows the geographic impact of Richard Hagan'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 Richard Hagan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Richard Hagan more than expected).
Fields of papers citing papers by Richard Hagan
This network shows the impact of papers produced by Richard Hagan. 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 Richard Hagan. The network helps show where Richard Hagan may publish in the future.
Co-authorship network
The 25 scholars most cited alongside Richard Hagan, 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 | 2025 | 0 | |
| 2 | 2024 | 0 | |
| 3 | 2023 | 5 | |
| 4 | 2017 | 10 | |
| 5 | 2014 | 33 | |
| 6 | 2011 | 105 | |
| 7 | 2011 | 55 | |
| 8 | 2010 | 1 | |
| 9 | 2008 | 24 | |
| 10 | 2007 | 15 | |
| 11 | 2006 | 11 | |
| 12 | 2005 | 14 | |
| 13 | 2004 | 205 | |
| 14 | 2004 | 1 | |
| 15 | 2003 | 1 | |
| 16 | 2002 | 7 | |
| 17 | 2000 | 45 |
About Richard Hagan
Richard Hagan is a scholar working on Hepatology, Immunology and Hematology, having authored 17 papers that have together received 532 indexed citations. Recurring topics across this work include T-cell and B-cell Immunology (6 papers), Immune Cell Function and Interaction (4 papers), Hepatitis C virus research (4 papers), Multiple Sclerosis Research Studies (3 papers), Systemic Lupus Erythematosus Research (3 papers), Animal Virus Infections Studies (2 papers), Psoriasis: Treatment and Pathogenesis (2 papers) and Hepatitis B Virus Studies (2 papers). The work is most often cited by research in Hepatology (269 citations), Virology (60 citations) and Immunology (249 citations). Richard Hagan has collaborated with scholars based in Ireland, United Kingdom and United States. Frequent co-authors include Emer Lawlor, Susan McKiernan, John E. Hegarty, Michael P. Curry, Niamh Nolan, G. S. A. McDonald, Dermot Kelleher, Anne Walsh, Alan Kelly and John P. Crowley. Their work appears in journals such as Proceedings of the National Academy of Sciences, Gastroenterology and Hepatology.
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.