Karel Hählen

2.9k total citations · 1 hit paper
31 papers, 2.1k citations indexed

About

Karel Hählen is a scholar working on Hematology, Public Health, Environmental and Occupational Health and Pediatrics, Perinatology and Child Health. According to data from OpenAlex, Karel Hählen has authored 31 papers receiving a total of 2.1k indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Hematology, 14 papers in Public Health, Environmental and Occupational Health and 10 papers in Pediatrics, Perinatology and Child Health. Recurrent topics in Karel Hählen's work include Acute Lymphoblastic Leukemia research (13 papers), Acute Myeloid Leukemia Research (9 papers) and Childhood Cancer Survivors' Quality of Life (8 papers). Karel Hählen is often cited by papers focused on Acute Lymphoblastic Leukemia research (13 papers), Acute Myeloid Leukemia Research (9 papers) and Childhood Cancer Survivors' Quality of Life (8 papers). Karel Hählen collaborates with scholars based in Netherlands, United States and Germany. Karel Hählen's co-authors include Andreas Jung, Bruce D. Gelb, Henrik Hasle, Jochen Buechner, Jonathan D. Licht, Marco Tartaglia, Xiaoling Song, Alessandra Fragale, Charlotte M. Niemeyer and Marry M. van den Heuvel‐Eibrink and has published in prestigious journals such as Nature Genetics, Journal of Clinical Oncology and Blood.

In The Last Decade

Karel Hählen

31 papers receiving 2.0k citations

Hit Papers

Somatic mutations in PTPN... 2003 2026 2010 2018 2003 200 400 600
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Somatic mutations in PTPN11 in juvenile myelomonocytic leukemia, myelodysplastic syndromes and acute myeloid leukemia
    2003 723 citations Marco Tartaglia, Charlotte M. Niemeyer et al. Nature Genetics profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Karel Hählen Netherlands 17 959 601 535 447 389 31 2.1k
S Söderhäll Sweden 23 606 0.6× 712 1.2× 446 0.8× 133 0.3× 440 1.1× 34 1.9k
William B. Slayton United States 23 455 0.5× 715 1.2× 941 1.8× 235 0.5× 474 1.2× 83 2.1k
Shiann‐Tarng Jou Taiwan 24 516 0.5× 271 0.5× 541 1.0× 357 0.8× 355 0.9× 118 1.9k
A van der Does-van den Berg Netherlands 21 384 0.4× 920 1.5× 580 1.1× 140 0.3× 275 0.7× 34 1.4k
Sílvia Regina Brandalise Brazil 23 813 0.8× 489 0.8× 364 0.7× 124 0.3× 408 1.0× 91 1.8k
Julio C. Barredo United States 22 889 0.9× 446 0.7× 442 0.8× 73 0.2× 316 0.8× 73 2.0k
G. Henze Germany 22 350 0.4× 1.1k 1.8× 673 1.3× 130 0.3× 436 1.1× 50 1.7k
Céline Berthon France 22 899 0.9× 462 0.8× 1.3k 2.4× 289 0.6× 496 1.3× 77 2.1k
Jacques‐Olivier Bay France 25 702 0.7× 182 0.3× 891 1.7× 391 0.9× 721 1.9× 151 2.4k
Anders Castor Sweden 18 455 0.5× 806 1.3× 755 1.4× 136 0.3× 309 0.8× 46 1.5k

Countries citing papers authored by Karel Hählen

Since Specialization
Citations

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

Fields of papers citing papers by Karel Hählen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Karel Hählen

This figure shows the co-authorship network connecting the top 25 collaborators of Karel Hählen. A scholar is included among the top collaborators of Karel Hählen 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 Karel Hählen. Karel Hählen 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.
Goemans, Bianca F., C. Michel Zwaan, Jacqueline Cloos, et al.. (2010). FLT3 and KIT mutated pediatric acute myeloid leukemia (AML) samples are sensitive in vitro to the tyrosine kinase inhibitor SU11657. Leukemia Research. 34(10). 1302–1307. 7 indexed citations
2.
Goemans, Bianca F., C. Michel Zwaan, Desiree De Lange, et al.. (2006). FLT3 and KIT Mutated Pediatric Acute Myeloid Leukemia (AML) Samples Are More Sensitive In Vitro to the Tyrosine Kinase Inhibitor SU11657.. Blood. 108(11). 1359–1359. 1 indexed citations
3.
Kaspers, Gertjan J.L., R. Hartmann, A. H. Loonen, et al.. (2005). Immunophenotypic cell lineage and in vitro cellular drug resistance in childhood relapsed acute lymphoblastic leukaemia. European Journal of Cancer. 41(9). 1300–1303. 24 indexed citations
4.
Goemans, Bianca F., C. Michel Zwaan, Gertjan J.L. Kaspers, et al.. (2004). In-Vitro Cytotoxicity of Tipifarnib (Zarnestra TM) in Pediatric AML and ALL Samples Is Independent of RAS Mutations.. Blood. 104(11). 1172–1172. 1 indexed citations
5.
Hakvoort-Cammel, F.G.A.J., et al.. (2004). Treatment of pediatric Hodgkin disease avoiding radiotherapy: Excellent outcome with the Rotterdam‐HD‐84‐protocol. Pediatric Blood & Cancer. 43(1). 8–16. 22 indexed citations
6.
Tartaglia, Marco, Charlotte M. Niemeyer, Alessandra Fragale, et al.. (2003). Somatic mutations in PTPN11 in juvenile myelomonocytic leukemia, myelodysplastic syndromes and acute myeloid leukemia. Nature Genetics. 34(2). 148–150. 723 indexed citations breakdown →
7.
Bont, Eveline S.J.M. de, et al.. (2002). Vascular endothelial growth factor secretion is an independent prognostic factor for relapse-free survival in pediatric acute myeloid leukemia patients.. PubMed. 8(9). 2856–61. 56 indexed citations
8.
Sluis, Inge M. van der, Marry M. van den Heuvel‐Eibrink, Karel Hählen, Eric P. Krenning, & Sabine M.P.F. de Muinck Keizer‐Schrama. (2002). Altered bone mineral density and body composition, and increased fracture risk in childhood acute lymphoblastic leukemia. The Journal of Pediatrics. 141(2). 204–210. 162 indexed citations
9.
Zwaan, C. Michel, Gertjan J.L. Kaspers, Rob Pieters, et al.. (2000). Cellular drug resistance profiles in childhood acute myeloid leukemia: differences between FAB types and comparison with acute lymphoblastic leukemia.. Blood. 96(8). 2879–86. 78 indexed citations
10.
Sluis, Inge M. van der, Marry M. van den Heuvel‐Eibrink, Karel Hählen, Eric P. Krenning, & Sabine M.P.F. de Muinck Keizer‐Schrama. (2000). Bone mineral density, body composition, and height in long‐term survivors of acute lymphoblastic leukemia in childhood. Medical and Pediatric Oncology. 35(4). 415–420. 2 indexed citations
11.
Rots, Marianne G., Rob Pieters, Godefridus J. Peters, et al.. (1999). Circumvention of Methotrexate Resistance in Childhood Leukemia Subtypes by Rationally Designed Antifolates. Blood. 94(9). 3121–3128. 87 indexed citations
12.
Rots, Marianne G., Rob Pieters, Godefridus J. Peters, et al.. (1999). Role of Folylpolyglutamate Synthetase and Folylpolyglutamate Hydrolase in Methotrexate Accumulation and Polyglutamylation in Childhood Leukemia. Blood. 93(5). 1677–1683. 6 indexed citations
13.
Rots, Marianne G., Rob Pieters, Godefridus J. Peters, et al.. (1999). Role of Folylpolyglutamate Synthetase and Folylpolyglutamate Hydrolase in Methotrexate Accumulation and Polyglutamylation in Childhood Leukemia. Blood. 93(5). 1677–1683. 110 indexed citations
14.
Noesel, Max M. van, et al.. (1997). Neuroblastoma 4S. Cancer. 80(5). 834–843. 3 indexed citations
15.
Smiers, Frans J., et al.. (1996). CD20 and CD40 mediated mitogenic responses in B‐lineage acute lymphoblastic leukaemia. British Journal of Haematology. 93(1). 125–130. 6 indexed citations
16.
Dongen-Melman, J. E. W. M. Van, J.F.A. Pruyn, Astrid De Groot, et al.. (1995). Late Psychosocial Consequences for Parents of Children Who Survived Cancer. Journal of Pediatric Psychology. 20(5). 567–586. 107 indexed citations
17.
18.
Hop, Wim C.J., et al.. (1994). Minimal effects of E. coli and Erwinia asparaginase on the coagulation system in childhood acute lymphoblastic leukemia: A randomized study. Medical and Pediatric Oncology. 23(4). 335–343. 19 indexed citations
19.
Lingen, Richard A. van, et al.. (1992). The effect of heparin in arterial catheters on the coagulation in preterm infants. Journal of Perinatal Medicine. 20(1). 39–46. 6 indexed citations
20.
Pieters, Rob, D. R. Huismans, A. H. Loonen, Karel Hählen, & A. Veerman. (1991). Cytotoxic Effects of Vitamin A in Combination with Vincristine, Daunorubicin and 6‐Thioguanine upon Cells from Lymphoblastic Leukemic Patients. Japanese Journal of Cancer Research. 82(9). 1051–1055. 8 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by S Söderhäll Breakdown of academic impact, for papers by William B. Slayton Breakdown of academic impact, for papers by Shiann‐Tarng Jou Breakdown of academic impact, for papers by A van der Does-van den Berg Breakdown of academic impact, for papers by Sílvia Regina Brandalise Breakdown of academic impact, for papers by Julio C. Barredo Breakdown of academic impact, for papers by G. Henze Breakdown of academic impact, for papers by Céline Berthon Breakdown of academic impact, for papers by Jacques‐Olivier Bay Breakdown of academic impact, for papers by Anders Castor
Rankless by CCL
2026