James F. Marion

1.7k total citations
48 papers, 946 citations indexed

About

James F. Marion is a scholar working on Genetics, Epidemiology and Surgery. According to data from OpenAlex, James F. Marion has authored 48 papers receiving a total of 946 indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Genetics, 22 papers in Epidemiology and 17 papers in Surgery. Recurrent topics in James F. Marion's work include Inflammatory Bowel Disease (25 papers), Microscopic Colitis (16 papers) and Colorectal Cancer Screening and Detection (8 papers). James F. Marion is often cited by papers focused on Inflammatory Bowel Disease (25 papers), Microscopic Colitis (16 papers) and Colorectal Cancer Screening and Detection (8 papers). James F. Marion collaborates with scholars based in United States, United Kingdom and Canada. James F. Marion's co-authors include Daniel H. Present, Carol Bodian, Mark L. Chapman, Ellen Scherl, Peter Rubin, Asher Kornbluth, Uma Mahadevan, Noam Harpaz, D. H. Present and Steven H. Itzkowitz and has published in prestigious journals such as Gastroenterology, The American Journal of Gastroenterology and Gastrointestinal Endoscopy.

In The Last Decade

James F. Marion

47 papers receiving 915 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
James F. Marion United States 13 652 465 359 242 180 48 946
Judith A Collett New Zealand 13 400 0.6× 414 0.9× 378 1.1× 119 0.5× 179 1.0× 21 1.1k
Liekele E. Oostenbrug Netherlands 18 701 1.1× 505 1.1× 484 1.3× 107 0.4× 113 0.6× 42 1.0k
Tünde Pandúr Hungary 15 985 1.5× 832 1.8× 461 1.3× 92 0.4× 103 0.6× 34 1.1k
Michael J. Burt New Zealand 18 417 0.6× 512 1.1× 419 1.2× 66 0.3× 229 1.3× 28 1.3k
Fukiko Komaki Japan 15 344 0.5× 325 0.7× 227 0.6× 123 0.5× 75 0.4× 33 777
Terry Ponich Canada 19 340 0.5× 281 0.6× 450 1.3× 255 1.1× 83 0.5× 48 1.0k
Annalisa Aratari Italy 16 541 0.8× 465 1.0× 279 0.8× 88 0.4× 47 0.3× 42 742
John A. Karagiannis Greece 11 878 1.3× 613 1.3× 539 1.5× 142 0.6× 48 0.3× 17 1.3k
Aysel Ülker Türkiye 16 370 0.6× 248 0.5× 247 0.7× 131 0.5× 35 0.2× 42 657
Jean‐Baptiste Chevaux France 14 750 1.2× 671 1.4× 316 0.9× 71 0.3× 52 0.3× 31 939

Countries citing papers authored by James F. Marion

Since Specialization
Citations

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

Fields of papers citing papers by James F. Marion

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by James F. Marion. 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 James F. Marion. The network helps show where James F. Marion may publish in the future.

Co-authorship network of co-authors of James F. Marion

This figure shows the co-authorship network connecting the top 25 collaborators of James F. Marion. A scholar is included among the top collaborators of James F. Marion 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 James F. Marion. James F. Marion 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.
Sands, Bruce E., Laurie Keefer, Benjamin L. Cohen, et al.. (2021). Improved Smoking Cessation Rates in a Pharmacist-Led Program Embedded in an Inflammatory Bowel Disease Specialty Medical Home. Journal of Pharmacy Practice. 35(6). 827–835. 6 indexed citations
2.
Rabinowitz, Loren, Nikhil A. Kumta, & James F. Marion. (2021). Beyond the SCENIC route: updates in chromoendoscopy and dysplasia screening in patients with inflammatory bowel disease. Gastrointestinal Endoscopy. 95(1). 30–37. 24 indexed citations
3.
Atreja, Ashish, Eva Szigethy, Helena Chang, et al.. (2018). DOP069 Improved quality of care and quality of life for IBD patients using mobile based remote monitoring platform: A randomised control trial. Journal of Crohn s and Colitis. 12(supplement_1). S077–S078. 3 indexed citations
4.
Hu, Jianzhong, Justin Côté-Daigneault, Hina Panchal, et al.. (2016). P735. Exploring mechanisms of inflammatory bowel disease transmission in utero through the microbiome: the MECONIUM Study Pilot. Journal of Crohn s and Colitis. 10(suppl 1). S482–S483. 1 indexed citations
5.
Marion, James F.. (2014). Colorectal Cancer in Colitis. Inflammatory Bowel Diseases. 21(3). 699–702. 2 indexed citations
6.
Sandborn, William J., Joshua R. Korzenik, Bret A. Lashner, et al.. (2010). Once-Daily Dosing of Delayed-Release Oral Mesalamine (400-mg Tablet) Is as Effective as Twice-Daily Dosing for Maintenance of Remission of Ulcerative Colitis. Gastroenterology. 138(4). 1286–1296.e3. 98 indexed citations
7.
Marion, James F., Jerome D. Waye, Daniel H. Present, et al.. (2008). Chromoendoscopy-Targeted Biopsies Are Superior to Standard Colonoscopic Surveillance for Detecting Dysplasia in Inflammatory Bowel Disease Patients: A Prospective Endoscopic Trial. The American Journal of Gastroenterology. 103(9). 2342–2349. 215 indexed citations
8.
Nilubol, Naris, Ellen Scherl, Stephen R. Gorfine, et al.. (2007). Mucosal Dysplasia in Ileal Pelvic Pouches After Restorative Proctocolectomy. Diseases of the Colon & Rectum. 50(6). 825–831. 30 indexed citations
9.
Marion, James F.. (2007). An expensive and empty ritual: The continued use of random biopsy technique for detecting dysplasia in patients with colitis. Inflammatory Bowel Diseases. 13(10). 1271–1272. 2 indexed citations
10.
Marion, James F. & Steven H. Itzkowitz. (2006). Chromoendoscopy in Inflammatory Bowel Disease. Techniques in Gastrointestinal Endoscopy. 8(3). 140–144. 1 indexed citations
11.
Goldstein, Eric S., James F. Marion, & Daniel H. Present. (2004). 6-Mercaptopurine Is Effective in Crohn’s Disease Without Concomitant Steroids. Inflammatory Bowel Diseases. 10(2). 79–84. 12 indexed citations
12.
Moskovitz, David N., Carol Bodian, Mark L. Chapman, et al.. (2004). The Effect on the Fetus of Medications Used to Treat Pregnant Inflammatory Bowel-Disease Patients. The American Journal of Gastroenterology. 99(4). 656–661. 127 indexed citations
13.
Mahadevan, Uma, James F. Marion, & D. H. Present. (2003). Fistula response to methotrexate in Crohn's disease: a case series. Alimentary Pharmacology & Therapeutics. 18(10). 1003–1008. 65 indexed citations
14.
Friedman, Sonia, James F. Marion, Ellen Scherl, Peter Rubin, & Daniel H. Present. (2001). Intravenous Cyclosporine in Refractory Pyoderma Gangrenosum Complicating Inflammatory Bowel Disease. Inflammatory Bowel Diseases. 7(1). 1–7. 49 indexed citations
15.
Toy, Lisa, Ellen Scherl, Asher Kornbluth, et al.. (2000). Complete bowel obstruction following initial response to infliximab therapy for crohn's disease: A series of a newly described complication. Gastroenterology. 118(4). A569–A569. 50 indexed citations
16.
Toy, Lisa, James F. Marion, Ellen Scherl, et al.. (2000). Infliximab therapy for Crohn's disease fistulae: Number of infusions required for response and time to relapse. Gastroenterology. 118(4). A569–A569. 4 indexed citations
17.
Marion, James F. & Daniel H. Present. (1997). The modern medical management of acute, severe ulcerative colitis. European Journal of Gastroenterology & Hepatology. 9(9). 831–835. 40 indexed citations
18.
Kornbluth, Asher, James F. Marion, Peter Salomon, & Henry D. Janowitz. (1995). How Effective Is Current Medical Therapy for Severe Ulcerative and Crohnʼs Colitis?. Journal of Clinical Gastroenterology. 20(4). 280–284. 57 indexed citations
19.
Marion, James F., Carol Bodian, & H. D. Janowitz. (1995). Appendectomy, appendicitis, and inflammatory bowel disease. Gastroenterology. 108(4). A870–A870. 7 indexed citations
20.
Marion, James F., et al.. (1995). Rarity of fistulas in Crohn's disease of the jejunum. Inflammatory Bowel Diseases. 1(1). 34–36. 5 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

Rankless by CCL
2026