Ryan May

3.1k citations

36 papers · 1.3k indexed · h-index 21

Impact in

Psychiatry and Mental health top 5%
- Epilepsy research and treatment
Orthopedics and Sports Medicine top 5%
- Bone health and osteoporosis research

Papers in ⓘ

Psychiatry and Mental health 11
- Epilepsy research and treatment 8
Pediatrics, Perinatology and Child Health 10
- Pharmacological Effects and Toxicity Studies 10

Co-authors: Kimford J. Meador (10 shared papers)Page B. Pennell (10 shared papers)Laura A. Kalayjian (6 shared papers)Haitao Chu (5 shared papers)Kristine E. Ensrud (1 shared paper)Chenxi Li (1 shared paper)Jane A. Cauley (1 shared paper)Jason P. Fine (1 shared paper)
Journals: Epilepsy & Behavior (4 papers)Statistics in Medicine (3 papers)British Journal of Haematology (2 papers)Vaccine (2 papers)Neurology (2 papers)
Partner nations: United States United Kingdom Germany

In The Last Decade

Ryan May

35 papers receiving 1.3k citations

Peers

Countries citing papers authored by Ryan May

Since Specialization

Citations

This map shows the geographic impact of Ryan May'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 Ryan May with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ryan May more than expected).

Fields of papers citing papers by Ryan May

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ryan May. 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 Ryan May. The network helps show where Ryan May may publish in the future.

Co-authors

The 25 scholars most cited alongside Ryan May, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Ryan May Line = papers co-authored together Ryan May links everyone, so they are left out of the graph.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Showing the 20 most-cited of 36 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Bone-Density Testing Interval and Transition to Osteoporosis in Older Women New England Journal of Medicine ·Margaret L. Gourlay, Jason P. Fine, John S. Preisser, Ryan May, Chenxi Li, Li‐Yung Lui, David F. Ransohoff, Jane A. Cauley, Kristine E. Ensrud	2012	180
2	Fetal antiepileptic drug exposure: Adaptive and emotional/behavioral functioning at age 6years Epilepsy & Behavior ·Morris J. Cohen, Kimford J. Meador, N. Andrew Browning, Ryan May, Gus A. Baker, Jill Clayton‐Smith, Laura A. Kalayjian, Andrés M. Kanner, Joyce Liporace, Page B. Pennell, Michael Privitera, David W. Loring	2013	126
3	The relationship between fractures and DXA measures of BMD in the distal femur of children and adolescents with cerebral palsy or muscular dystrophy Journal of Bone and Mineral Research ·Richard C. Henderson, Lisa Berglund, Ryan May, Babette S. Zemel, Richard Grossberg, Julie Babish Johnson, Horacio Plotkin, Richard D. Stevenson, Elizabeth A. Szalay, Brenda Wong, Heidi H. Kecskemethy, H. Theodore Harcke	2009	110
4	Association of Coagulation Activation with Clinical Complications in Sickle Cell Disease PLoS ONE ·Kenneth I. Ataga, Julia E. Brittain, Payal Desai, Ryan May, Susan Jones, John Delaney, Dell Strayhorn, Alan L. Hinderliter, Nigel S. Key	2012	82
5	Antiepileptic Drug Exposure in Infants of Breastfeeding Mothers With Epilepsy JAMA Neurology ·Angela K. Birnbaum, Kimford J. Meador, Ashwin Karanam, Carrie Brown, Ryan May, Elizabeth E. Gerard, Evan Gedzelman, Patricia Penovich, Laura A. Kalayjian, Jennifer Cavitt, Alison Pack, John W. Miller, Zachary N. Stowe, Page B. Pennell, (unknown)	2019	77
6	Proximal humerus fractures: a comparative biomechanical analysis of intra and extramedullary implants Archives of Orthopaedic and Trauma Surgery ·Bernd Füchtmeier, Ryan May, R. Hente, M. Maghsudi, M. Völk, J. Hammer, Michael Nerlich, Lukas Prantl	2007	69
7	DNA methylation profiling in the Carolina Breast Cancer Study defines cancer subclasses differing in clinicopathologic characteristics and survival Breast Cancer Research ·Kathleen Conway, Sharon N. Edmiston, Ryan May, Pei Fen Kuan, Haitao Chu, Chris Bryant, Chiu-Kit Tse, Theresa Swift‐Scanlan, Joseph Geradts, Melissa A. Troester, Robert C. Millikan	2014	66
8	Changes in antiepileptic drug-prescribing patterns in pregnant women with epilepsy Epilepsy & Behavior ·Kimford J. Meador, Page B. Pennell, Ryan May, Elizabeth E. Gerard, Laura A. Kalayjian, Naymee Velez‐Ruiz, Patricia Penovich, Jennifer Cavitt, Jacqueline A. French, Sean Hwang, Alison Pack, Maria Sam, Eugene Moore, Dominic Ippolito	2018	61
9	Changes in Seizure Frequency and Antiepileptic Therapy during Pregnancy New England Journal of Medicine ·Page B. Pennell, Jacqueline A. French, Ryan May, Elizabeth E. Gerard, Laura A. Kalayjian, Patricia Penovich, Evan Gedzelman, Jennifer Cavitt, Sean Hwang, Alison Pack, Maria Sam, John W. Miller, Steffanie H Wilson, Carrie Brown, Angela K. Birnbaum, Kimford J. Meador	2020	60
10	Racial Variation in Breast Tumor Promoter Methylation in the Carolina Breast Cancer Study Cancer Epidemiology Biomarkers & Prevention ·Kathleen Conway, Sharon N. Edmiston, Chiu-Kit Tse, Chris Bryant, Pei Fen Kuan, Brionna Y. Hair, Eloise Parrish, Ryan May, Theresa Swift‐Scanlan	2015	44
11	Effects of periconceptional folate on cognition in children of women with epilepsy Neurology ·Kimford J. Meador, Page B. Pennell, Ryan May, Carrie Brown, Gus A. Baker, Rebecca Bromley, David W. Loring, Morris J. Cohen, (unknown)	2019	39
12	Maximum likelihood estimation in generalized linear models with multiple covariates subject to detection limits Statistics in Medicine ·Ryan May, Joseph G. Ibrahim, Haitao Chu	2011	32
13	A phase I safety and immunogenicity dose escalation trial of plague vaccine, Flagellin/F1/V, in healthy adult volunteers (DMID 08-0066) Vaccine ·Sharon E. Frey, Kathleen R. Lottenbach, Irene Graham, Edwin L. Anderson, Kanwaldeep Bajwa, Ryan May, Steven B. Mizel, Aaron H. Graff, Robert B. Belshe	2017	30
14	Metabolome-wide association study of anti-epileptic drug treatment during pregnancy Toxicology and Applied Pharmacology ·Douglas I. Walker, Kayla Perry‐Walker, Richard H. Finnell, Kurt D. Pennell, ViLinh Tran, Ryan May, Thomas F. McElrath, Kimford J. Meador, Page B. Pennell, Dean P. Jones	2018	30
15	Fetal loss and malformations in the MONEAD study of pregnant women with epilepsy Neurology ·Kimford J. Meador, Page B. Pennell, Ryan May, Linda Van Marter, Thomas F. McElrath, Carrie Brown, Elizabeth E. Gerard, Laura A. Kalayjian, Evan Gedzelman, Patricia Penovich, Jennifer Cavitt, Jacqueline A. French, Sean Hwang, Alison Pack, Maria Sam, Angela K. Birnbaum, Richard H. Finnell, (unknown)	2019	30
16	Fetal antiepileptic drug exposure and learning and memory functioning at 6 years of age: The NEAD prospective observational study Epilepsy & Behavior ·Morris J. Cohen, Kimford J. Meador, Ryan May, Hayley Loblein, Thomas Conrad, Gus A. Baker, Rebecca Bromley, Jill Clayton‐Smith, Laura A. Kalayjian, Andrés M. Kanner, Joyce Liporace, Page B. Pennell, Michael Privitera, David W. Loring	2019	29
17	Surprising evidence of pelvic growth (widening) after skeletal maturity Journal of Orthopaedic Research® ·A Berger, Ryan May, Jordan B. Renner, Neal Viradia, Laurence E. Dahners	2011	23
18	Hemiepiphyseodesis for Late-Onset Tibia Vara Journal of Pediatric Orthopaedics ·Brandon D. Bushnell, Ryan May, Edmund Campion, Gregory A. Schmale, Richard C. Henderson	2009	22
19	Effect of Observing Change from Comparison Mammograms on Performance of Screening Mammography in a Large Community-based Population Radiology ·Bonnie C. Yankaskas, Ryan May, Jeanine Matuszewski, J. Michael Bowling, Molly P. Jarman, Bruce F. Schroeder	2011	21
20	Association of soluble fms‐like tyrosine kinase‐1 with pulmonary hypertension and haemolysis in sickle cell disease British Journal of Haematology ·Kenneth I. Ataga, Julia E. Brittain, Susan Jones, Ryan May, John Delaney, Dell Strayhorn, Payal Desai, Rupa Redding‐Lallinger, Nigel S. Key, Eugene P. Orringer	2011	21

About Ryan May

Ryan May is a scholar working on Psychiatry and Mental health, Pediatrics, Perinatology and Child Health, Public Health, Environmental and Occupational Health, Surgery and Epidemiology, having authored 36 papers that have together received 1.3k indexed citations. Recurring topics across this work include Pharmacological Effects and Toxicity Studies (10 papers), Pregnancy and Medication Impact (10 papers), Epilepsy research and treatment (8 papers), Statistical Methods and Bayesian Inference (4 papers), Hemoglobinopathies and Related Disorders (3 papers), Hip disorders and treatments (3 papers), Shoulder Injury and Treatment (3 papers) and Statistical Methods and Inference (3 papers). The work is most often cited by research in Psychiatry and Mental health (372 citations), Orthopedics and Sports Medicine (200 citations), Pediatrics, Perinatology and Child Health (443 citations), Genetics (132 citations) and Public Health, Environmental and Occupational Health (350 citations). Ryan May has collaborated with scholars based in United States, United Kingdom and Germany. Frequent co-authors include Kimford J. Meador, Page B. Pennell, Laura A. Kalayjian, Haitao Chu, Kristine E. Ensrud, Chenxi Li, Jane A. Cauley, Jason P. Fine, John S. Preisser and Li‐Yung Lui. Their work appears in journals such as Epilepsy & Behavior, Statistics in Medicine, British Journal of Haematology, Vaccine and Neurology.

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.

Explore authors with similar magnitude of impact