Greg Ryan
Impact in
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- Prenatal Screening and Diagnostics
- Assisted Reproductive Technology and Twin Pregnancy
- Fetal and Pediatric Neurological Disorders
- Obstetrics and Gynecology top 0.5%
- Pregnancy and preeclampsia studies
Papers in
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- Assisted Reproductive Technology and Twin Pregnancy 51
- Prenatal Screening and Diagnostics 32
- Surgery 94
- Congenital Diaphragmatic Hernia Studies 51
- Congenital Anomalies and Fetal Surgery 22
- Co-authors
- Rory C. Windrim (59 shared papers)Lisa K. Hornberger (13 shared papers)EDGAR T. JAEGGI (22 shared papers)Tim Van Mieghem (57 shared papers)David A. Chitayat (33 shared papers)Edmond Kelly (22 shared papers)P. Gareth R. Seaward (21 shared papers)Jacob C. Langer (11 shared papers)
- Journals
- Prenatal Diagnosis (44 papers)American Journal of Obstetrics and Gynecology (36 papers)Ultrasound in Obstetrics and Gynecology (33 papers)Fetal Diagnosis and Therapy (12 papers)Journal of Obstetrics and Gynaecology Canada (10 papers)
- Partner nations
- CanadaUnited StatesUnited Kingdom
In The Last Decade
Greg Ryan
252 papers receiving 6.7k citations
Greg Ryan's Hit Papers
Peers
Comparison fields: 5 of 122
- Pediatrics, Perinatology and Child Health 2.2k
- Obstetrics and Gynecology 735
- Hematology 762
- Surgery 2.6k
- Urology 183
Countries citing papers authored by Greg Ryan
This map shows the geographic impact of Greg 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 Greg Ryan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Greg Ryan more than expected).
Fields of papers citing papers by Greg Ryan
This network shows the impact of papers produced by Greg 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 Greg Ryan. The network helps show where Greg Ryan may publish in the future.
Co-authors
The 25 scholars most cited alongside Greg 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 268 papers — load more, or switch the sort, to bring in the rest.
| # | Work | ||
|---|---|---|---|
| 1 | 2004 | 270 | |
| 2 | Randomized Trial of Fetal Surgery for Severe Left Diaphragmatic Hernia Hit paper breakdown → | 2021 | 260 |
| 3 | 2006 | 197 | |
| 4 | 2018 | 166 | |
| 5 | 2011 | 156 | |
| 6 | 2003 | 147 | |
| 7 | 2004 | 146 | |
| 8 | Association of SARS-CoV-2 Infection During Pregnancy With Maternal and Perinatal Outcomes Hit paper breakdown → | 2022 | 118 |
| 9 | 2015 | 111 | |
| 10 | 2005 | 110 | |
| 11 | 2005 | 107 | |
| 12 | 2011 | 103 | |
| 13 | 2002 | 103 | |
| 14 | 1993 | 101 | |
| 15 | 2016 | 101 | |
| 16 | 2001 | 97 | |
| 17 | 2017 | 96 | |
| 18 | 2001 | 92 | |
| 19 | 2002 | 79 | |
| 20 | 2001 | 77 |
About Greg Ryan
Greg Ryan is a scholar working on Pediatrics, Perinatology and Child Health, Surgery, Obstetrics and Gynecology, Hematology and Pulmonary and Respiratory Medicine, having authored 268 papers that have together received 7.2k indexed citations. Recurring topics across this work include Assisted Reproductive Technology and Twin Pregnancy (51 papers), Congenital Diaphragmatic Hernia Studies (51 papers), Prenatal Screening and Diagnostics (32 papers), Blood groups and transfusion (23 papers), Congenital Anomalies and Fetal Surgery (22 papers), Pregnancy and preeclampsia studies (17 papers), Congenital Heart Disease Studies (15 papers) and Parvovirus B19 Infection Studies (14 papers). The work is most often cited by research in Pediatrics, Perinatology and Child Health (2.2k citations), Obstetrics and Gynecology (735 citations), Hematology (762 citations), Surgery (2.6k citations) and Urology (183 citations). Greg Ryan has collaborated with scholars based in Canada, United States and United Kingdom. Frequent co-authors include Rory C. Windrim, Lisa K. Hornberger, EDGAR T. JAEGGI, Tim Van Mieghem, David A. Chitayat, Edmond Kelly, P. Gareth R. Seaward, Jacob C. Langer, Ants Toi and John C. Kingdom. Their work appears in journals such as Prenatal Diagnosis, American Journal of Obstetrics and Gynecology, Ultrasound in Obstetrics and Gynecology, Fetal Diagnosis and Therapy and Journal of Obstetrics and Gynaecology Canada.
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.