Max Knaapen

890 total citations
12 papers, 201 citations indexed

About

Max Knaapen is a scholar working on Surgery, Emergency Medicine and Sociology and Political Science. According to data from OpenAlex, Max Knaapen has authored 12 papers receiving a total of 201 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Surgery, 7 papers in Emergency Medicine and 3 papers in Sociology and Political Science. Recurrent topics in Max Knaapen's work include Appendicitis Diagnosis and Management (7 papers), Intestinal Malrotation and Obstruction Disorders (5 papers) and Delphi Technique in Research (3 papers). Max Knaapen is often cited by papers focused on Appendicitis Diagnosis and Management (7 papers), Intestinal Malrotation and Obstruction Disorders (5 papers) and Delphi Technique in Research (3 papers). Max Knaapen collaborates with scholars based in Netherlands, United Kingdom and United States. Max Knaapen's co-authors include Max Nieuwdorp, Ruud S. Kootte, Pieter F. de Groot, A. Vrieze, Els van Nood, Roel Bakx, Ramon R. Gorter, Johanna H. van der Lee, S. The and Hugo A. Heij and has published in prestigious journals such as Annals of Surgery, Clinical Microbiology and Infection and BMJ Open.

In The Last Decade

Max Knaapen

12 papers receiving 197 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Max Knaapen Netherlands	8	69	52	51	38	30	12	201
Ichiro Okada Japan	7	43 0.6×	20 0.4×	23 0.5×	14 0.4×	7 0.2×	29	128
Jessica Vanhaebost Belgium	8	30 0.4×	17 0.3×	65 1.3×	27 0.7×	59 2.0×	18	278
D.G. Dunlap United States	8	23 0.3×	40 0.8×	17 0.3×	38 1.0×	12 0.4×	27	216
Marnie Goodwin Wilson Canada	9	36 0.5×	44 0.8×	18 0.4×	47 1.2×	11 0.4×	16	224
Carmen A. Sánchez-Ramírez Mexico	9	122 1.8×	22 0.4×	3 0.1×	24 0.6×	10 0.3×	41	283
Christopher Alexakis United Kingdom	11	125 1.8×	29 0.6×	23 0.5×	9 0.2×	7 0.2×	25	356
G. Ledoux France	8	26 0.4×	15 0.3×	23 0.5×	15 0.4×	7 0.2×	23	220
Elana Lavine Canada	12	70 1.0×	46 0.9×	30 0.6×	52 1.4×		22	346
John Fardy Canada	8	144 2.1×	25 0.5×	5 0.1×	35 0.9×	16 0.5×	19	282
Yunkoo Kang South Korea	10	58 0.8×	37 0.7×	3 0.1×	38 1.0×	15 0.5×	40	274

Countries citing papers authored by Max Knaapen

Since Specialization

Citations

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

Fields of papers citing papers by Max Knaapen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Max Knaapen

This figure shows the co-authorship network connecting the top 25 collaborators of Max Knaapen. A scholar is included among the top collaborators of Max Knaapen 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 Max Knaapen. Max Knaapen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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12 of 12 papers shown

Yeung, Kak Khee, et al.. (2024). Systematic Review of Outcome Reporting for Interventions to Treat Patients with Acute Lower Limb Ischaemia. European Journal of Vascular and Endovascular Surgery. 68(5). 600–604. 1 indexed citations

Knaapen, Max, Astrid de Wind, Johanna H. van der Lee, et al.. (2022). Implementing Nonoperative Treatment Strategy for Simple Pediatric Appendicitis: A Qualitative Study. Journal of Surgical Research. 279. 218–227. 1 indexed citations

Knaapen, Max, et al.. (2020). Outcomes after appendectomy in children with acute appendicitis treated at a tertiary paediatric centre: results from a retrospective cohort study. Langenbeck s Archives of Surgery. 406(1). 163–169. 14 indexed citations

Knaapen, Max, Martijn A. Oudijk, Rieke van der Graaf, et al.. (2020). Low-risk trials for children and pregnant women threatened by unnecessary strict regulations. Does the coming EU Clinical Trial Regulation offer a solution?. European Journal of Pediatrics. 179(8). 1205–1211. 4 indexed citations

Knaapen, Max, et al.. (2020). [Revised guideline for acute appendicitis. Amendments to diagnostics and treatment].. PubMed. 164. 1 indexed citations

Knaapen, Max, Nigel Hall, Johanna H. van der Lee, et al.. (2020). International Core Outcome Set for Acute Simple Appendicitis in Children. Annals of Surgery. 276(6). 1047–1055. 15 indexed citations

Knaapen, Max, Nigel Hall, Johanna H. van der Lee, et al.. (2019). Establishing a core outcome set for treatment of uncomplicated appendicitis in children: study protocol for an international Delphi survey. BMJ Open. 9(5). e028861–e028861. 13 indexed citations

Knaapen, Max, et al.. (2018). Clinical recovery in children with uncomplicated appendicitis undergoing non-operative treatment: secondary analysis of a prospective cohort study. European Journal of Pediatrics. 178(2). 235–242. 11 indexed citations

Knaapen, Max, Johanna H. van der Lee, Roel Bakx, et al.. (2017). Initial non-operative management of uncomplicated appendicitis in children: a protocol for a multicentre randomised controlled trial (APAC trial). BMJ Open. 7(11). e018145–e018145. 17 indexed citations

10.

Vrieze, A., Pieter F. de Groot, Ruud S. Kootte, et al.. (2013). Fecal transplant: A safe and sustainable clinical therapy for restoring intestinal microbial balance in human disease?. Best Practice & Research Clinical Gastroenterology. 27(1). 127–137. 73 indexed citations

11.

Knaapen, Max, Ruud S. Kootte, Erwin G. Zoetendal, et al.. (2013). Obesity, non-alcoholic fatty liver disease, and atherothrombosis: a role for the intestinal microbiota?. Clinical Microbiology and Infection. 19(4). 331–337. 19 indexed citations

12.

Knaapen, Max, Charlotte Koch, Karel T. Koch, et al.. (2012). Prevalence of left and balanced coronary arterial dominance decreases with increasing age of patients at autopsy. A postmortem coronary angiograms study. Cardiovascular Pathology. 22(1). 49–53. 32 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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