Ward Hagar

1.5k total citations
24 papers, 1.1k citations indexed

About

Ward Hagar is a scholar working on Genetics, Hematology and Pediatrics, Perinatology and Child Health. According to data from OpenAlex, Ward Hagar has authored 24 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Genetics, 18 papers in Hematology and 4 papers in Pediatrics, Perinatology and Child Health. Recurrent topics in Ward Hagar's work include Hemoglobinopathies and Related Disorders (23 papers), Iron Metabolism and Disorders (15 papers) and Blood groups and transfusion (7 papers). Ward Hagar is often cited by papers focused on Hemoglobinopathies and Related Disorders (23 papers), Iron Metabolism and Disorders (15 papers) and Blood groups and transfusion (7 papers). Ward Hagar collaborates with scholars based in United States, United Kingdom and Canada. Ward Hagar's co-authors include Elliott Vichinsky, Frans A. Kuypers, Claudia R. Morris, Susan Claster, Sidney M. Morris, Lorenzo Machado, Diane Kepka‐Lenhart, Winfred C. Wang, Samir K. Ballas and Deepika S. Darbari and has published in prestigious journals such as Blood, PLoS ONE and American Journal of Respiratory and Critical Care Medicine.

In The Last Decade

Ward Hagar

23 papers receiving 1.1k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Ward Hagar United States 13 832 655 231 162 139 24 1.1k
Joseph Kurantsin‐Mills United States 16 290 0.3× 239 0.4× 207 0.9× 55 0.3× 122 0.9× 38 675
M. Toppet Belgium 14 473 0.6× 433 0.7× 87 0.4× 122 0.8× 117 0.8× 40 881
S Na-Nakorn Thailand 22 1.1k 1.3× 878 1.3× 265 1.1× 356 2.2× 104 0.7× 51 1.4k
M. J. Pippard United Kingdom 12 339 0.4× 417 0.6× 88 0.4× 57 0.4× 67 0.5× 17 675
Azita Azarkeivan Iran 21 950 1.1× 812 1.2× 196 0.8× 189 1.2× 145 1.0× 115 1.3k
Klara Kleman United States 13 912 1.1× 767 1.2× 94 0.4× 385 2.4× 63 0.5× 18 1.0k
Matthew S. Karafin United States 20 392 0.5× 573 0.9× 300 1.3× 133 0.8× 99 0.7× 77 1.0k
Herbert C. Lichtman United States 14 251 0.3× 230 0.4× 72 0.3× 143 0.9× 186 1.3× 39 742
Norio Yokose Japan 14 104 0.1× 333 0.5× 48 0.2× 21 0.1× 90 0.6× 37 787
Matthias Dürken Germany 17 158 0.2× 430 0.7× 45 0.2× 80 0.5× 100 0.7× 35 778

Countries citing papers authored by Ward Hagar

Since Specialization
Citations

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

Fields of papers citing papers by Ward Hagar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ward Hagar

This figure shows the co-authorship network connecting the top 25 collaborators of Ward Hagar. A scholar is included among the top collaborators of Ward Hagar based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ward Hagar. Ward Hagar is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Wilson, Samuel, Sophie Lanzkron, Julie Kanter, et al.. (2025). Identifying distinct subgroups with severe pain in sickle cell disease: A cluster analysis of the GRNDaD multi-center registry. PLoS ONE. 20(5). e0320889–e0320889. 1 indexed citations
2.
Wilson, Samuel, Nirmish Shah, Andrey V. Bortsov, et al.. (2023). Biopsychosocial Factors Associated With Pain and Pain-Related Outcomes in Adults and Children With Sickle Cell Disease: A Multivariable Analysis of the GRNDaD Multicenter Registry. Journal of Pain. 25(1). 153–164. 8 indexed citations
3.
Preiss, Liliana, Jane S. Hankins, Jeffrey Glassberg, et al.. (2022). Characterising the prevalence of overweight and obese status among adults with sickle cell disease. British Journal of Haematology. 200(5). 633–642. 5 indexed citations
4.
Kelly, Shannon, Evan Jacobs, Mars Stone, et al.. (2020). Influence of sickle cell disease on susceptibility to HIV infection. PLoS ONE. 15(4). e0218880–e0218880. 8 indexed citations
5.
Hagar, Ward, et al.. (2019). Evaluation of Mandible Fractures in Patients With Sickle Cell Anemia—A Nationwide Study. Journal of Oral and Maxillofacial Surgery. 77(7). 1418–1422. 1 indexed citations
6.
Paulukonis, Susan, James R. Eckman, Angela Snyder, et al.. (2016). Defining Sickle Cell Disease Mortality Using a Population-Based Surveillance System, 2004 through 2008. Public Health Reports. 131(2). 367–375. 63 indexed citations
7.
Kutlar, Abdullah, Kenneth I. Ataga, Lillian McMahon, et al.. (2012). A potent oral P‐selectin blocking agent improves microcirculatory blood flow and a marker of endothelial cell injury in patients with sickle cell disease. American Journal of Hematology. 87(5). 536–539. 58 indexed citations
8.
9.
Ballas, Samir K., Muge R. Kesen, Morton F. Goldberg, et al.. (2012). Beyond the Definitions of the Phenotypic Complications of Sickle Cell Disease: An Update on Management. The Scientific World JOURNAL. 2012. 1–55. 132 indexed citations
10.
Bloch, Evan M., Barbara L. Herwaldt, David A. Leiby, et al.. (2011). The third described case of transfusion‐transmitted Babesia duncani. Transfusion. 52(7). 1517–1522. 66 indexed citations
11.
Hoppe, Carolyn, Frans A. Kuypers, Sandra Larkin, et al.. (2011). A pilot study of the short‐term use of simvastatin in sickle cell disease: effects on markers of vascular dysfunction. British Journal of Haematology. 153(5). 655–663. 59 indexed citations
12.
Hagar, Ward & Elliott Vichinsky. (2008). Advances in clinical research in sickle cell disease. British Journal of Haematology. 141(3). 346–356. 33 indexed citations
13.
Jenkins, Zandra A., Ward Hagar, Christopher L. Bowlus, et al.. (2007). IRON HOMEOSTASIS DURING TRANSFUSIONAL IRON OVERLOAD IN β-THALASSEMIA AND SICKLE CELL DISEASE: Changes in Iron Regulatory Protein, Hepcidin, and Ferritin Expression. Pediatric Hematology and Oncology. 24(4). 237–243. 30 indexed citations
14.
Morris, Claudia R., Jung H. Suh, Ward Hagar, et al.. (2007). Erythrocyte glutamine depletion, altered redox environment, and pulmonary hypertension in sickle cell disease. Blood. 111(1). 402–410. 144 indexed citations
15.
Fung, Ellen B., Paul Harmatz, Meredith Milet, et al.. (2006). Morbidity and mortality in chronically transfused subjects with thalassemia and sickle cell disease: A report from the multi‐center study of iron overload. American Journal of Hematology. 82(4). 255–265. 129 indexed citations
16.
Morris, Claudia R., et al.. (2005). Abnormal Pulmonary Function in Adults and Children with Sickle Cell Disease.. Blood. 106(11). 2319–2319. 1 indexed citations
17.
Morris, Claudia R., Sidney M. Morris, Ward Hagar, et al.. (2003). Arginine Therapy. American Journal of Respiratory and Critical Care Medicine. 168(1). 63–69. 245 indexed citations
18.
Hagar, Ward, Elliott Vichinsky, & Elizabeth C. Theil. (2003). Liver Ferritin Subunit Ratios in Neonatal Hemochromatosis. Pediatric Hematology and Oncology. 20(3). 229–235. 2 indexed citations
19.
Hagar, Ward, Elliott Vichinsky, & Elizabeth C. Theil. (2003). Liver Ferritin Subunit Ratios in Neonatal Hemochromatosis. Pediatric Hematology and Oncology. 20(3). 229–235. 9 indexed citations
20.
Hagar, Ward, Elizabeth C. Theil, & Elliott Vichinsky. (2002). Diseases of iron metabolism. Pediatric Clinics of North America. 49(5). 893–909. 12 indexed citations

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.

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