John P. Ryan
Impact in
- Reproductive Medicine top 1%
- Ovarian function and disorders
- Sperm and Testicular Function
- Transplantation top 5%
Papers in
- Surgery 42
- Transplantation: Methods and Outcomes 33
- Organ Transplantation Techniques and Outcomes 13
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- Reproductive Biology and Fertility 28
- Co-authors
- Roger Hart (5 shared papers)R. G. WALES (3 shared papers)Melanie Walls (4 shared papers)C. O’Neill (4 shared papers)Jeffrey A. Keelan (3 shared papers)Pablo G. Sánchez (34 shared papers)D. M. Saunders (8 shared papers)Caterina Rosano (5 shared papers)
- Journals
- Clinical Transplantation (10 papers)The Annals of Thoracic Surgery (6 papers)Fertility and Sterility (6 papers)Reproduction Fertility and Development (6 papers)Journal of Thoracic and Cardiovascular Surgery (5 papers)
- Partner nations
- United StatesAustraliaIreland
In The Last Decade
John P. Ryan
96 papers receiving 1.6k citations
Peers
Comparison fields: 5 of 125
- Reproductive Medicine 475
- Transplantation 59
- Public Health, Environmental and Occupational Health 632
- Health Informatics 15
- Pediatrics, Perinatology and Child Health 189
Countries citing papers authored by John P. Ryan
This map shows the geographic impact of John P. 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 P. 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 P. Ryan more than expected).
Fields of papers citing papers by John P. Ryan
This network shows the impact of papers produced by John P. 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 P. Ryan. The network helps show where John P. Ryan may publish in the future.
Co-authors
The 25 scholars most cited alongside John P. 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
Showing the 20 most-cited of 105 papers — load more, or switch the sort, to bring in the rest.
| # | Work | ||
|---|---|---|---|
| 1 | 2014 | 142 | |
| 2 | 2008 | 97 | |
| 3 | 2014 | 65 | |
| 4 | 2001 | 60 | |
| 5 | 2021 | 59 | |
| 6 | 1989 | 58 | |
| 7 | 1990 | 57 | |
| 8 | 2012 | 56 | |
| 9 | 1989 | 56 | |
| 10 | 2015 | 54 | |
| 11 | 2011 | 49 | |
| 12 | 2015 | 49 | |
| 13 | 2006 | 46 | |
| 14 | 1990 | 44 | |
| 15 | 1995 | 39 | |
| 16 | 2015 | 38 | |
| 17 | 2023 | 33 | |
| 18 | 1987 | 33 | |
| 19 | 2020 | 31 | |
| 20 | 2010 | 27 |
About John P. Ryan
John P. Ryan is a scholar working on Surgery, Public Health, Environmental and Occupational Health, Reproductive Medicine, Pulmonary and Respiratory Medicine and Biomedical Engineering, having authored 105 papers that have together received 1.7k indexed citations. Recurring topics across this work include Transplantation: Methods and Outcomes (33 papers), Reproductive Biology and Fertility (28 papers), Ovarian function and disorders (17 papers), Mechanical Circulatory Support Devices (15 papers), Organ Transplantation Techniques and Outcomes (13 papers), Sperm and Testicular Function (12 papers), Renal Transplantation Outcomes and Treatments (9 papers) and Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis (7 papers). The work is most often cited by research in Reproductive Medicine (475 citations), Transplantation (59 citations), Public Health, Environmental and Occupational Health (632 citations), Health Informatics (15 citations) and Pediatrics, Perinatology and Child Health (189 citations). John P. Ryan has collaborated with scholars based in United States, Australia and Ireland. Frequent co-authors include Roger Hart, R. G. WALES, Melanie Walls, C. O’Neill, Jeffrey A. Keelan, Pablo G. Sánchez, D. M. Saunders, Caterina Rosano, Peter J. Gianaros and Lei K. Sheu. Their work appears in journals such as Clinical Transplantation, The Annals of Thoracic Surgery, Fertility and Sterility, Reproduction Fertility and Development and Journal of Thoracic and Cardiovascular Surgery.
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.