W Knapple

3.9k total citations · 1 hit paper
25 papers, 569 citations indexed

About

W Knapple is a scholar working on Surgery, Epidemiology and Gastroenterology. According to data from OpenAlex, W Knapple has authored 25 papers receiving a total of 569 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Surgery, 10 papers in Epidemiology and 10 papers in Gastroenterology. Recurrent topics in W Knapple's work include Clostridium difficile and Clostridium perfringens research (9 papers), Microscopic Colitis (7 papers) and Gastrointestinal motility and disorders (6 papers). W Knapple is often cited by papers focused on Clostridium difficile and Clostridium perfringens research (9 papers), Microscopic Colitis (7 papers) and Gastrointestinal motility and disorders (6 papers). W Knapple collaborates with scholars based in United States, Denmark and Canada. W Knapple's co-authors include Robert H. Hawes, Laura W. Lamps, Lars Aabakken, Benoit C. Pineau, W Coyle, P B Cotton, Paul Feuerstadt, Brenda J. Hoffman, Sahil Khanna and Julia Garcia‐Diaz and has published in prestigious journals such as Gastroenterology, Clinical Infectious Diseases and The Journal of Pediatrics.

In The Last Decade

W Knapple

23 papers receiving 553 citations

Hit Papers

Efficacy and Safety of RBX2660 in PUNCH CD3, a Phase III,... 2022 2026 2023 2024 2022 50 100 150
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. Efficacy and Safety of RBX2660 in PUNCH CD3, a Phase III, Randomized, Double-Blind, Placebo-Controlled Trial with a Bayesian Primary Analysis for the Prevention of Recurrent Clostridioides difficile Infection
    2022 179 citations Sahil Khanna, Maha Assi et al. Drugs profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
W Knapple United States 9 311 195 144 134 125 25 569
Hoon Sup Koo South Korea 11 190 0.6× 76 0.4× 70 0.5× 61 0.5× 186 1.5× 38 445
Matthew J. Giefer United States 12 366 1.2× 68 0.3× 120 0.8× 172 1.3× 140 1.1× 22 652
Vikas Sachdev India 12 332 1.1× 43 0.2× 119 0.8× 134 1.0× 40 0.3× 20 487
Robert Keskey United States 12 158 0.5× 92 0.5× 64 0.4× 106 0.8× 24 0.2× 27 515
Perry Hookman United States 8 269 0.9× 200 1.0× 23 0.2× 176 1.3× 153 1.2× 27 577
Tae‐Geun Gweon South Korea 14 178 0.6× 112 0.6× 131 0.9× 109 0.8× 123 1.0× 53 429
Ramón Carmona-Sánchez Mexico 12 321 1.0× 20 0.1× 93 0.6× 85 0.6× 207 1.7× 56 494
Giovanna Vitale Italy 9 135 0.4× 37 0.2× 73 0.5× 32 0.2× 155 1.2× 21 350
J C Vij India 16 564 1.8× 59 0.3× 73 0.5× 134 1.0× 113 0.9× 33 769
Mengsha Cen China 7 77 0.2× 103 0.5× 75 0.5× 43 0.3× 32 0.3× 9 327

Countries citing papers authored by W Knapple

Since Specialization
Citations

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

Fields of papers citing papers by W Knapple

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of W Knapple

This figure shows the co-authorship network connecting the top 25 collaborators of W Knapple. A scholar is included among the top collaborators of W Knapple 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 W Knapple. W Knapple 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.
Khanna, Sahil, Daniel Van Handel, Brian J. Clark, et al.. (2025). Prevention of recurrent Clostridioides difficile infection by fecal microbiota, live-jslm (REBYOTA ® ) administered via colonoscopy: 6-month data from the single-arm phase IIIb CDI-SCOPE trial. Therapeutic Advances in Gastroenterology. 18. 1128579720–1128579720.
2.
Allegretti, Jessica R., Paul Feuerstadt, W Knapple, et al.. (2025). Safety and Efficacy of Fecal Microbiota, Live-jslm (REBYOTA®), for the Prevention of Recurrent Clostridioides difficile Infection in Participants With Inflammatory Bowel Disease in PUNCH CD3-OLS. Inflammatory Bowel Diseases. 31(8). 2112–2122. 1 indexed citations
3.
Khanna, Sahil, Daniel Van Handel, Brian J. Clark, et al.. (2025). Safety and effectiveness of fecal microbiota, live-jslm (REBYOTA ® ) administered by colonoscopy for prevention of recurrent Clostridioides difficile infection: 8-week results from CDI-SCOPE, a single-arm, phase IIIb trial. Therapeutic Advances in Gastroenterology. 18. 1128522673–1128522673. 1 indexed citations
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Khanna, Sahil, Maha Assi, Christine Lee, et al.. (2022). Efficacy and Safety of RBX2660 in PUNCH CD3, a Phase III, Randomized, Double-Blind, Placebo-Controlled Trial with a Bayesian Primary Analysis for the Prevention of Recurrent Clostridioides difficile Infection. Drugs. 82(15). 1527–1538. 179 indexed citations breakdown →
8.
Khanna, Sahil, et al.. (2022). S132 An Interim Analysis of a Phase 3, Open-Label Study Indicates Efficacy and Safety of RBX2660 in Patients With Recurrent Clostridioides difficile Infection. The American Journal of Gastroenterology. 117(10S). e96–e96. 6 indexed citations
9.
Lamps, Laura W. & W Knapple. (2007). Diverticular Disease–Associated Segmental Colitis. Clinical Gastroenterology and Hepatology. 5(1). 27–31. 57 indexed citations
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Külling, Daniel, A. V. Sahai, W Knapple, John T. Cunningham, & Brenda Hoffman. (1998). Diagnostic Endoscopic Ultrasound of the Pancreas May Cause Acute Pancreatitis. Endoscopy. 30(1). S 7–S 8. 5 indexed citations
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Hoffman, Brenda, et al.. (1997). EUS-guided injection of botulinum toxin (Botox) for achalasia: Final report of an open study. Gastrointestinal Endoscopy. 45(4). AB174–AB174. 2 indexed citations
15.
Knapple, W, et al.. (1997). Repeat pancreatic sphincter manometry after biliary sphincterotomy in patients with sphincter of oddi dysfunction. Gastrointestinal Endoscopy. 45(4). AB151–AB151. 6 indexed citations
16.
Hoffman, Brenda J., et al.. (1997). Treatment of achalasia by injection of botulinum toxin under endoscopic ultrasound guidance. Gastrointestinal Endoscopy. 45(1). 77–79. 53 indexed citations
17.
Knapple, W, et al.. (1996). Sphincter of Oddi manometry (SOM) of both ducts after conscious sedation with meperidine. Gastrointestinal Endoscopy. 43(4). 385–385. 1 indexed citations
18.
Knapple, W, et al.. (1996). EUS-guided injection of botulinum toxin for achalasia. Gastrointestinal Endoscopy. 43(4). 424–424. 6 indexed citations
19.
Hoffman, Brenda, Manoop S. Bhutani, W Knapple, & Robert H. Hawes. (1995). Traitement de l’achalasie par injection de toxine botulinique sous contrôle échoendoscopique. Acta Endoscopica. 25(5). 485–490. 2 indexed citations
20.
Woody, Robert C., et al.. (1989). Impaired neutrophil function in children with seizures treated with the ketogenic diet. The Journal of Pediatrics. 115(3). 427–430. 31 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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