Gea A. Holtman

1.4k total citations
58 papers, 882 citations indexed

About

Gea A. Holtman is a scholar working on Surgery, Epidemiology and Infectious Diseases. According to data from OpenAlex, Gea A. Holtman has authored 58 papers receiving a total of 882 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Surgery, 13 papers in Epidemiology and 10 papers in Infectious Diseases. Recurrent topics in Gea A. Holtman's work include Gastrointestinal motility and disorders (9 papers), Appendicitis Diagnosis and Management (7 papers) and Microscopic Colitis (6 papers). Gea A. Holtman is often cited by papers focused on Gastrointestinal motility and disorders (9 papers), Appendicitis Diagnosis and Management (7 papers) and Microscopic Colitis (6 papers). Gea A. Holtman collaborates with scholars based in Netherlands, United Kingdom and Belgium. Gea A. Holtman's co-authors include Anouk van der Hoorn, Peter Jan van Laar, Bart R. J. van Dijken, Marjolein Y. Berger, Yvonne Lisman‐van Leeuwen, Henriëtte E. Westerlaan, Johannes B. Reitsma, Boudewijn J. Kollen, Ann Van den Bruel and Patrick F. van Rheenen and has published in prestigious journals such as PLoS ONE, PEDIATRICS and Cochrane Database of Systematic Reviews.

In The Last Decade

Gea A. Holtman

55 papers receiving 867 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Gea A. Holtman Netherlands 15 318 273 150 125 118 58 882
Maria Teresa Terreri Brazil 20 87 0.3× 59 0.2× 181 1.2× 181 1.4× 50 0.4× 109 1.2k
Márcia M. Barbosa Brazil 26 151 0.5× 103 0.4× 177 1.2× 625 5.0× 40 0.3× 72 1.6k
Joseph Stanek United States 18 30 0.1× 312 1.1× 136 0.9× 120 1.0× 167 1.4× 151 1.3k
Avnish Tripathi United States 19 135 0.4× 109 0.4× 214 1.4× 313 2.5× 327 2.8× 58 1.2k
Carol M. Rumack United States 20 152 0.5× 93 0.3× 250 1.7× 224 1.8× 45 0.4× 61 1.2k
Henedina Antunes Portugal 14 34 0.1× 37 0.1× 135 0.9× 185 1.5× 103 0.9× 81 779
Barbara H. Johnson United States 19 61 0.2× 43 0.2× 144 1.0× 240 1.9× 25 0.2× 61 1.2k
Joan M. Von Feldt United States 18 78 0.2× 30 0.1× 101 0.7× 112 0.9× 26 0.2× 42 1.0k
Michael Stephens United Kingdom 21 158 0.5× 14 0.1× 453 3.0× 128 1.0× 162 1.4× 83 1.7k
Kate Armon United Kingdom 13 33 0.1× 36 0.1× 199 1.3× 113 0.9× 84 0.7× 42 907

Countries citing papers authored by Gea A. Holtman

Since Specialization
Citations

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

Fields of papers citing papers by Gea A. Holtman

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Gea A. Holtman. 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 Gea A. Holtman. The network helps show where Gea A. Holtman may publish in the future.

Co-authorship network of co-authors of Gea A. Holtman

This figure shows the co-authorship network connecting the top 25 collaborators of Gea A. Holtman. A scholar is included among the top collaborators of Gea A. Holtman 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 Gea A. Holtman. Gea A. Holtman 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.
Bruel, Ann Van den, et al.. (2024). Trends in C reactive protein testing: a retrospective cohort study in paediatric ambulatory care settings. BMJ Open. 14(6). e081658–e081658.
2.
Boer, Michiel R. de, et al.. (2024). Accuracy of diagnostic tests for acute diverticulitis that are feasible in primary care: a systematic review and meta-analysis. Family Practice. 41(1). 1–8. 2 indexed citations
3.
Worp, Henk van der, Gea A. Holtman, & Marco H. Blanker. (2023). Challenges In Performing An Individual Participant–level Data Meta-analysis. European Urology Focus. 9(5). 705–707. 2 indexed citations
4.
Berger, Marjolein Y., et al.. (2023). A care substitution service in the Netherlands: impact on referral, cost, and patient satisfaction. BMC Primary Care. 24(1). 171–171. 3 indexed citations
5.
6.
Burger, Huibert, et al.. (2023). Development and validation of a clinical prediction rule for acute appendicitis in children in primary care. European Journal of General Practice. 29(1). 2233053–2233053. 1 indexed citations
7.
Holtman, Gea A., et al.. (2023). Management of children with non-acute abdominal pain and diarrhea in Dutch primary care: a retrospective cohort study based on a routine primary care database (AHON). Scandinavian Journal of Primary Health Care. 41(3). 267–275. 1 indexed citations
8.
Fokkema, Tryntsje, Anke Heida, Karin M. Vermeulen, et al.. (2023). Home-based guided hypnotherapy for children with functional abdominal pain and irritable bowel syndrome in primary care: study protocol for a randomised controlled trial. BMJ Open. 13(5). e069653–e069653. 2 indexed citations
9.
Lei, Johan van der, et al.. (2022). Added value of CRP to clinical features when assessing appendicitis in children. European Journal of General Practice. 28(1). 95–101. 9 indexed citations
10.
Fawkner-Corbett, David, et al.. (2022). Diagnostic accuracy of blood tests of inflammation in paediatric appendicitis: a systematic review and meta-analysis. BMJ Open. 12(11). e056854–e056854. 18 indexed citations
11.
Holtman, Gea A., Huibert Burger, Robert Verheij, et al.. (2021). Developing a clinical prediction rule for repeated consultations with functional somatic symptoms in primary care: a cohort study. BMJ Open. 11(1). e040730–e040730. 5 indexed citations
12.
13.
Hoogwater, Frederik J.H., et al.. (2021). Diagnostic performance of preoperative CT in differentiating between benign and malignant origin of suspicious gallbladder lesions. European Journal of Radiology. 138. 109619–109619. 6 indexed citations
14.
Summeren, Jojanneke van, Gea A. Holtman, Yvonne Lisman‐van Leeuwen, et al.. (2021). Cost-effectiveness of physiotherapy in childhood functional constipation: a randomized controlled trial in primary care. Family Practice. 39(4). 662–668. 6 indexed citations
15.
Hayward, Gail, Jan Y. Verbakel, George Edwards, et al.. (2020). Non-contact infrared versus axillary and tympanic thermometers in children attending primary care: a mixed-methods study of accuracy and acceptability. British Journal of General Practice. 70(693). e236–e244. 17 indexed citations
16.
Bruel, Ann Van den, Jan Y. Verbakel, Kay Wang, et al.. (2020). Non-contact infrared thermometers compared with current approaches in primary care for children aged 5 years and under: a method comparison study. Health Technology Assessment. 24(53). 1–28. 7 indexed citations
17.
Hoogwater, Frederik J.H., et al.. (2020). Clinical value of diffusion-weighted MRI for differentiation between benign and malignant gallbladder disease: a systematic review and meta-analysis. Acta Radiologica. 62(8). 987–996. 5 indexed citations
18.
Westerlaan, Henriëtte E., et al.. (2017). Incidence of Tumour Progression and Pseudoprogression in High-Grade Gliomas: a Systematic Review and Meta-Analysis. Clinical Neuroradiology. 28(3). 401–411. 107 indexed citations
19.
Hoorn, Anouk van der, Peter Jan van Laar, Gea A. Holtman, & Henriëtte E. Westerlaan. (2017). Diagnostic accuracy of magnetic resonance imaging techniques for treatment response evaluation in patients with head and neck tumors, a systematic review and meta-analysis. PLoS ONE. 12(5). e0177986–e0177986. 21 indexed citations
20.
Cals, Jochen, et al.. (2014). Sneltesten in de huisartspraktijk. Nederlandsch tijdschrift voor geneeskunde/Nederlands tijdschrift voor geneeskunde/NTvG-databank. 158. 1 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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