J Ferwerda

619 total citations
13 papers, 475 citations indexed

About

J Ferwerda is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Nephrology. According to data from OpenAlex, J Ferwerda has authored 13 papers receiving a total of 475 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Surgery, 6 papers in Pulmonary and Respiratory Medicine and 2 papers in Nephrology. Recurrent topics in J Ferwerda's work include Helicobacter pylori-related gastroenterology studies (4 papers), Muscle and Compartmental Disorders (3 papers) and Gastrointestinal disorders and treatments (3 papers). J Ferwerda is often cited by papers focused on Helicobacter pylori-related gastroenterology studies (4 papers), Muscle and Compartmental Disorders (3 papers) and Gastrointestinal disorders and treatments (3 papers). J Ferwerda collaborates with scholars based in Netherlands. J Ferwerda's co-authors include P Blok, W Dekker, M. E. Craanen, G N Tytgat, G. N. J. Tytgat, Chris J.J. Mulder, Paul Fockens, Guido N.J. Tytgat, Gerard L. Guit and J. H. de Vries and has published in prestigious journals such as Gut, Gastrointestinal Endoscopy and Nephrology Dialysis Transplantation.

In The Last Decade

J Ferwerda

12 papers receiving 451 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
J Ferwerda Netherlands	7	375	268	87	80	59	13	475
Hideharu Okanobu Japan	13	204 0.5×	278 1.0×	77 0.9×	141 1.8×	62 1.1×	35	461
Willem Dekker Netherlands	10	305 0.8×	127 0.5×	143 1.6×	166 2.1×	131 2.2×	13	452
Sina Alexander Australia	8	244 0.7×	332 1.2×	149 1.7×	131 1.6×	117 2.0×	18	554
Hiroki Imagawa Japan	11	295 0.8×	248 0.9×	55 0.6×	295 3.7×	38 0.6×	23	498
Yun‐Biao Hu China	10	366 1.0×	145 0.5×	69 0.8×	361 4.5×	34 0.6×	16	509
T Muto Japan	9	379 1.0×	219 0.8×	148 1.7×	62 0.8×	169 2.9×	24	574
Shunsuke Takata Japan	13	437 1.2×	363 1.4×	19 0.2×	93 1.2×	30 0.5×	21	557
Paulo Freire Portugal	11	188 0.5×	78 0.3×	86 1.0×	166 2.1×	60 1.0×	24	319
Ilias Scotiniotis United States	9	280 0.7×	164 0.6×	60 0.7×	58 0.7×	61 1.0×	18	350
Stephan Miehlke Germany	11	404 1.1×	147 0.5×	19 0.2×	112 1.4×	37 0.6×	31	478

Countries citing papers authored by J Ferwerda

Since Specialization

Citations

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

Fields of papers citing papers by J Ferwerda

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J Ferwerda

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

All Works

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13 of 13 papers shown

Ferwerda, J, et al.. (1999). [Whipple's disease in a man with weight loss and diarrhea].. PubMed. 143(8). 413–7. 1 indexed citations

Bruno, Marco J., David J. van Westerloo, W T van Dorp, et al.. (1998). Peritoneal dialysis is associated with an increased incidence of acute pancreatitis but hemodialysis is not. European Journal of Gastroenterology & Hepatology. 10(12). A87–A87. 2 indexed citations

Dorp, W T van, et al.. (1998). Colonic pseudo-obstruction due to beta2-microglobulin amyloidosis after long-term haemodialysis.. PubMed. 10(8). 717–20. 4 indexed citations

Vries, J. H. de, Luciën E. M. Duijm, Willem Dekker, et al.. (1997). CT before and after ERCP: detection of pancreatic pseudotumor, asymptomatic retroperitoneal perforation, and duodenal diverticulum. Gastrointestinal Endoscopy. 45(3). 231–235. 29 indexed citations

Haringsma, Jelle, J Ferwerda, W Dekker, & H. L. F. Brom. (1997). Preliminary Experience with a New Ultraviolet-Cured Expandable Plastic Endoprosthesis in the Management of Malignant Esophageal Strictures. Endoscopy. 29(3). 188–191. 7 indexed citations

Bruno, Mauro, J Ferwerda, Gerard L. Guit, & Wijnand K. den Dekker. (1997). Preliminary evaluation of the clinical value of MRCP in relation to abdominal ultrasound and ERCP. Gastrointestinal Endoscopy. 45(4). AB124–AB124. 3 indexed citations

Fockens, Paul, Chris J.J. Mulder, Guido N.J. Tytgat, P Blok, & J Ferwerda. (1995). Comparison of the efficacy and safety of 1.5 compared with 3.0 g oral slow-release mesalazine (Pentasa) in the maintenance treatment of ulcerative colitis. European Journal of Gastroenterology & Hepatology. 7(11). 1025–1030. 83 indexed citations

Ferwerda, J, et al.. (1995). Two non-diabetic patients with delayed gastric emptying during CAPD effectively treated with erythromycin. Nephrology Dialysis Transplantation. 10(12). 2349–2350. 3 indexed citations

Vries, J. H. de, J Ferwerda, Erik A. Rauws, & Luciën E. M. Duijm. (1994). Pancreatic pseudocyst formation complicated by inferior caval vein thrombosis and pulmonary embolism. European Journal of Gastroenterology & Hepatology. 6(9). 839–842.

10.

Craanen, M. E., W Dekker, P Blok, J Ferwerda, & G N Tytgat. (1992). Intestinal metaplasia and Helicobacter pylori: an endoscopic bioptic study of the gastric antrum.. Gut. 33(1). 16–20. 174 indexed citations

11.

Craanen, M. E., P Blok, W Dekker, J Ferwerda, & G N Tytgat. (1992). Subtypes of intestinal metaplasia and Helicobacter pylori.. Gut. 33(5). 597–600. 68 indexed citations

12.

Craanen, M. E., W Dekker, P Blok, J Ferwerda, & G. N. J. Tytgat. (1992). Time trends in gastric carcinoma: changing patterns of type and location.. PubMed. 87(5). 572–9. 93 indexed citations

13.

Ferwerda, J, et al.. (1990). [A patient with acute hydroxychloroquine poisoning; recommendation for treatment].. PubMed. 134(50). 2445–6. 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.

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