John J. Ryan
- Immunology top 5%
- Mast cells and histamine 4
- Transplantation top 5%
- Renal Transplantation Outcomes and Treatments 2
- Oncology top 10%
- Cytokine Signaling Pathways and Interactions 5
- Pathology and Forensic Medicine top 10%
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- Erythrocyte Function and Pathophysiology 3
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- Cell death mechanisms and regulation 3
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- Stroke Rehabilitation and Recovery 2
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- Organ Donation and Transplantation 2
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- BRCA gene mutations in cancer 2
- Co-authors
- Ian HayErik J. BergstralhColum A. GormanKenneth P. OffordStephen L. ArcherWillard W. SharpErik MorrowZhigang Hong
- Partner nations
- United StatesUnited KingdomCanada
In The Last Decade
John J. Ryan
34 papers receiving 2.1k citations
Peers
Comparison fields: 5 of 127
- Endocrinology, Diabetes and Metabolism 422
- Immunology 484
- Transplantation 52
- Oncology 446
- Pathology and Forensic Medicine 197
Countries citing papers authored by John J. Ryan
This map shows the geographic impact of John J. Ryan'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 John J. Ryan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John J. Ryan more than expected).
Fields of papers citing papers by John J. Ryan
This network shows the impact of papers produced by John J. Ryan. 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 John J. Ryan. The network helps show where John J. Ryan may publish in the future.
Co-authorship network
The 25 scholars most cited alongside John J. Ryan, 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 | 2016 | 17 | |
| 3 | 2015 | 60 | |
| 4 | 2011 | 28 | |
| 5 | [Trend of PCB/PCDF concentrations in the blood of Yusho patients for 38 years after the incidence]. | 2007 | 5 |
| 6 | 2007 | 69 | |
| 7 | 2006 | 65 | |
| 8 | 2005 | 115 | |
| 9 | 2004 | 46 | |
| 10 | 2002 | 26 | |
| 11 | 2001 | 52 | |
| 12 | 2000 | 6 | |
| 13 | 1999 | 36 | |
| 14 | 1996 | 9 | |
| 15 | 1996 | 140 | |
| 16 | 1994 | 75 | |
| 17 | 1992 | 1 | |
| 18 | 1990 | 33 | |
| 19 | 1990 | 41 | |
| 20 | 1988 | 280 |
About John J. Ryan
John J. Ryan is a scholar working on Transplantation, Internal Medicine and Rehabilitation, having authored 35 papers that have together received 2.1k indexed citations. Recurring topics across this work include Cytokine Signaling Pathways and Interactions (5 papers), Mast cells and histamine (4 papers), Erythrocyte Function and Pathophysiology (3 papers), Cell death mechanisms and regulation (3 papers), Stroke Rehabilitation and Recovery (2 papers), Organ Donation and Transplantation (2 papers), Renal Transplantation Outcomes and Treatments (2 papers) and BRCA gene mutations in cancer (2 papers). The work is most often cited by research in Endocrinology, Diabetes and Metabolism (422 citations), Immunology (484 citations) and Transplantation (52 citations). John J. Ryan has collaborated with scholars based in United States, United Kingdom and Canada. Frequent co-authors include Ian Hay, Erik J. Bergstralh, Colum A. Gorman, Kenneth P. Offord, Stephen L. Archer, Willard W. Sharp, Erik Morrow, Zhigang Hong, Hannah J. Zhang and Sarah M. Jacobs-Helber. Their work appears in journals such as Blood, World Journal of Surgery, Journal of Neuroimmunology, The Journal of Immunology and American Journal of Nephrology.
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.