John K. Marshall

Active 1956–2025

126
Papers
20,755
Citations
72
h-index
116
i10-index

Citations

Citations per year for John K. Marshall1959: 1 citations1966: 1 citations1970: 1 citations1971: 1 citations1973: 3 citations1974: 1 citations1975: 1 citations1976: 2 citations1977: 2 citations1978: 2 citations1979: 4 citations1980: 2 citations1981: 5 citations1982: 2 citations1983: 2 citations1984: 8 citations1985: 2 citations1986: 5 citations1987: 4 citations1988: 1 citations1989: 7 citations1991: 2 citations1992: 5 citations1993: 1 citations1994: 7 citations1995: 1 citations1996: 3 citations1997: 6 citations1998: 5 citations1999: 9 citations2000: 11 citations2001: 16 citations2002: 17 citations2003: 21 citations2004: 37 citations2005: 41 citations2006: 57 citations2007: 62 citations2008: 85 citations2009: 82 citations2010: 94 citations2011: 130 citations2012: 126 citations2013: 103 citations2014: 148 citations2015: 139 citations2016: 186 citations2017: 215 citations2018: 185 citations2019: 610 citations2020: 743 citations2021: 779 citations2022: 738 citations2023: 702 citations2024: 1,070 citations2025: 492 citations2026: 10 citations1960–1965: no citations, so these years are not shown1967–1969: no citations, so these years are not shown1972: no citations, so this year is not shown1990: no citations, so this year is not shown

Citation sources

Countries

World map of the countries and regions citing this authorUnited States: 1,868 citing papers, 18% of this breakdownChina: 864 citing papers, 8.3% of this breakdownCanada: 810 citing papers, 7.8% of this breakdownUnited Kingdom: 761 citing papers, 7.4% of this breakdownItaly: 617 citing papers, 6% of this breakdownFrance: 446 citing papers, 4.3% of this breakdownGermany: 387 citing papers, 3.7% of this breakdownNetherlands: 334 citing papers, 3.2% of this breakdownAustralia: 320 citing papers, 3.1% of this breakdownSpain: 291 citing papers, 2.8% of this breakdownBelgium: 231 citing papers, 2.2% of this breakdownJapan: 214 citing papers, 2.1% of this breakdown
0%18%Other 31.1%

Fields

  • Medicine47.1%
  • Biochemistry, Genetics and Molecular Biology41.9%
  • Immunology and Microbiology2.6%
  • Neuroscience2.5%
  • Agricultural and Biological Sciences1.5%
  • Nursing0.8%
  • Other3.6%

Topics

  • Inflammatory Bowel Disease13.2%
  • Gut microbiota and health8.9%
  • Gastrointestinal motility and disorders5.8%
  • Microscopic Colitis5.6%
  • Clostridium difficile and Clostridium perfringens research5.4%
  • Helicobacter pylori-related gastroenterology studies4.3%
  • Other56.8%

Coauthors

All papers

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  1. ECCO Guidelines on Therapeutics in Crohn's Disease: Medical Treatment

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Christian Maaser, Fernando Magro, John K. Marshall, Pär Myrelid, Gianluca Pellino, Isadora Rosa, João Sabino, Edoardo Savarino, Antonino Spinelli, Laurents Stassen, Mathieu Uzzan, Stephan R. Vavricka, Bram Verstockt, Janindra Warusavitarne, Oded Zmora, Gionata Fiorino - Journal of Crohn s and Colitis 2019 cited by 1,344

  2. Fecal Microbiota Transplantation Induces Remission in Patients With Active Ulcerative Colitis in a Randomized Controlled Trial

    Authors: , , , , , , , , , , - Gastroenterology 2015 cited by 1,499

  3. ECCO Guidelines on Therapeutics in Crohn’s Disease: Surgical Treatment

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Torsten Kucharzik, Theodore Lytras, Christian Maaser, Fernando Magro, John K. Marshall, Pär Myrelid, Gianluca Pellino, Isadora Rosa, João Sabino, Edoardo Savarino, Laurents Stassen, Joana Torres, Mathieu Uzzan, Stephan R. Vavricka, Bram Verstockt, Oded Zmora - Journal of Crohn s and Colitis 2019 cited by 1,117

  4. Association of ultra-processed food intake with risk of inflammatory bowel disease: prospective cohort study

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Noushin Mohammadifard, John K. Marshall, Paul Moayyedi, Walter Reinisch, Salim Yusuf - BMJ 2021 cited by 356

  5. Gut Microbiome Composition Is Associated With Future Onset of Crohn’s Disease in Healthy First-Degree Relatives

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Baruch Yerushalmi, Andrew D. Paterson, Wei Xu, Maria Abreu, Paul L. Beck, Çharles N. Bernstein, Kenneth Croitoru, Levinus A. Dieleman, Brian G. Feagan, Anne M. Griffiths, David S. Guttman, Kevan Jacobson, Gilaad G. Kaplan, Denis O. Krause, Karen Madsen, John K. Marshall, Paul Moayyedi, Mark J. Ropeleski, Ernest G. Seidman, Mark S. Silverberg, Scott B. Snapper, Andy Stadnyk, Hillary Steinhart, Michael G. Surette, Dan Turner, Tom Walters, Bruce A. Vallance, Guy Aumais, Alain Bitton, Maria Cino, Jeff Critch, Lee A. Denson, C Deslandres, Wael El-Matary, Hans Herfarth, Peter Higgins, Hien Q. Huynh, Jeffrey S. Hyams, David Mack, Jerry McGrath, Anthony Otley, Remo Panancionne, Kenneth Croitoru - Gastroenterology 2023 cited by 192

  6. Ustekinumab versus adalimumab for induction and maintenance therapy in biologic-naive patients with moderately to severely active Crohn's disease: a multicentre, randomised, double-blind, parallel-group, phase 3b trial

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Clint Behrend, Geert Bezemer, Guillaume Bonnaud, Marija Branković, Ik Jang Byung, Xavier Calvet, Karen A. Chachu, Júlio Maria Fonseca Chebli, Jae Hee Cheon, Halina Cichoż‐Lach, Larry Clark, Fraser Cummings, Kunal Dalal, Silvio Danese, Nanne K.H. de Boer, Maria de Lourdes Abreu Ferrari, Étienne Désilets, Predrag Dugalić, George Duvall, Olga Fedorishina, Rafał Filip, Cristina Flores, Ronald Fogel, James Fon, Michael Frankel, Keith Friedenberg, Walter Fries, Vassileva Galina, Piotr Gietka, Rishi Goel, Peter Hasselblatt, Hans Herfarth, László Herszényi, Pieter Hindryckx, Frank Hoentjen, Carmen Horjus Talabur Horje, Satish Iduru, Peter M. Irving, Robert J. Isfort, Vipul Jairath, Michael Jones, Dilara Kalimullina, Jeffry Katz, Manreet Kaur, Sunil K Khurana, Joo Sung Kim, Young‐Ho Kim, D Kleczkowski, Slavko Knezevic, Aaron Knoll, Louis Y Korman, Iskren Kotzev, Andrey Kulyapin, Kang‐Moon Lee, Desirée Leemreis, Jarosław Leszczyszyn, Jimmy K. Limdi, Jack J. Lissauer, Edward V. Loftus, Ewa Małecka‐Panas, John K. Marshall, Emese Mihály, Lukáš Milan, Giovanni Monteleone, Aleksandar Nagorni, Danuta Owczarek, Nichole Palekar, Remo Panaccione, Young Soo Park, Sang Hyoung Park and 43 more - The Lancet 2022 cited by 297

  7. Altered Gut Microbiome Composition and Function Are Associated With Gut Barrier Dysfunction in Healthy Relatives of Patients With Crohn’s Disease

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , - Gastroenterology 2022 cited by 194

  8. The Toronto Consensus for the Treatment of Helicobacter pylori Infection in Adults

    Authors: , , , , , , , , , , - Gastroenterology 2016 cited by 918

  9. Increased Intestinal Permeability Is Associated With Later Development of Crohn’s Disease

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Gilaad G. Kaplan, Denis O. Krause, Karen Madsen, John Marshall, Paul Moayyedi, Mark J. Ropeleski, Ernest G. Seidman, Mark S. Silverberg, Scott B. Snapper, Andy Stadnyk, Hillary Steinhart, Michael G. Surette, Dan Turner, Thomas D. Walters, Bruce A. Vallance, Guy Aumais, Alain Bitton, Maria Cino, Jeff Critch, Lee A. Denson, Colette Deslandres, Wael El‐Matary, Hans Herfarth, Peter Higgins, Hien Q. Huynh, Jeff Hyams, David Mack, Jerry McGrath, Anthony Otley, Remo Panancionne, Guy Aumais, Robert N. Baldassano, Çharles N. Bernstein, Maria Cino, Lee A. Denson, Colette Deslandres, Wael El‐Matary, Anne M. Griffiths, Charlotte Hedin, Hans Herfarth, Peter Higgins, Séamus Hussey, Hien Hyams, Kevan Jacobson, David J. Keljo, David Kevans, Charlie W. Lees, David Mack, John Marshall, Jerry McGrath, Sanjay K. Murthy, Anthony Otley, Remo Panaccione, Nimisha Parekh, Sophie Plamondon, Graham Radford-Smith, Mark J. Ropeleski, Joel R. Rosh, David T. Rubin, Michael Schultz, Ernest G. Seidman, Corey A. Siegel, Scott B. Snapper, Hillary Steinhart, Dan Turner, Kenneth Croitoru - Gastroenterology 2020 cited by 310

  10. Novel Fecal Biomarkers That Precede Clinical Diagnosis of Ulcerative Colitis

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Scott B. Snapper, Andy Stadnyk, Hillary Steinhart, Michael G. Surette, Dan Turner, Thomas D. Walters, Bruce A. Vallance, Guy Aumais, Alain Bitton, Maria Cino, Jeff Critch, Lee A. Denson, Colette Deslandres, Wael El‐Matary, Hans Herfarth, Peter Higgins, Hien Q. Huynh, Jeff Hyams, David R. Mack, Jerry McGrath, Anthony Otley, Remo Panancionne, Kenneth Croitoru, Elena F. Verdu - Gastroenterology 2020 cited by 186

  11. Mediterranean-Like Dietary Pattern Associations With Gut Microbiome Composition and Subclinical Gastrointestinal Inflammation

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Leo Dieleman, Brian Feagan, Anne M. Griffiths, David S. Guttman, Kevan Jacobson, Gilaad G. Kaplan, Denis O. Krause, Karen Madsen, John K. Marshall, Paul Moayyedi, Mark J. Ropeleski, Ernest G. Seidman, Mark S. Silverberg, Scott B. Snapper, Andy Stadnyk, Hillary Steinhart, Michael G. Surette, Dan Turner, Thomas Walters, Bruce A. Vallance, Guy Aumais, Alain Bitton, Maria Cino, Jeff Critch, Lee A. Denson, Colette Deslandres, Wael El-Matary, Hans Herfarth, Peter Higgins, Hien Q. Huynh, Jeff Hyams, David R. Mack, Jerry McGrath, Anthony Otley, Remo Panancionne, Guy Aumais, Robert N. Baldassano, Çharles N. Bernstein, Lee A. Denson, Colette Deslandres, Wael El-Matary, Anne M. Griffiths, Charlotte Hedin, Hans Herfarth, Peter Higgins, Séamus Hussey, Hien Hyams, Kevan Jacobson, David J. Keljo, David Kevans, Charlie W. Lees, David R. Mack, John K. Marshall, Jerry McGrath, Sanjay K. Murthy, Anthony Otley, Remo Panaccione, Nimisha Parekh, Sophie Plamondon, Graham Radford-Smith, Mark J. Ropeleski, Joel R. Rosh, David T. Rubin, Michael Schultz, Ernest G. Seidman, Corey A. Siegel, Scott B. Snapper, Hillary Steinhart, Dan Turner, Wei Xu and 1 more - Gastroenterology 2022 cited by 112

  12. Management of Nonvariceal Upper Gastrointestinal Bleeding: Guideline Recommendations From the International Consensus Group

    Authors: , , , , , , , , , , , , , , , , , , , , , , , - Annals of Internal Medicine 2019 cited by 626

  13. Anti-Integrin αvβ6 Autoantibodies Are a Novel Biomarker That Antedate Ulcerative Colitis

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , David Guttman, Kevan Jacobson, Gilaad G. Kaplan, Denis O. Krause, Karen Madsen, John K. Marshall, Paul Moayyedi, Mark J. Ropeleski, Ernest G. Seidman, Mark S. Silverberg, Scott B. Snapper, Andy Stadnyk, Hillary Steinhart, Michael G. Surette, Dan Turner, Tom Walters, Bruce A. Vallance, Guy Aumais, Alain Bitton, Maria Cino, Jeff Critch, Lee A. Denson, C Deslandres, Wael El‐Matary, Hans Herfarth, Peter Higgins, Hien Q. Huynh, Jeff Hyams, David Mack, Jerry McGrath, Anthony Otley, Remo Panancionne, Jason M. Shapiro, Samir Shah, Neal S. LeLeiko, Jean‐Frédéric Colombel, Saurabh Mehandru - Gastroenterology 2023 cited by 91

  14. Disruption of autophagy by increased 5-HT alters gut microbiota and enhances susceptibility to experimental colitis and Crohn’s disease

    Authors: , , , , , , , , , , , , , - Science Advances 2021 cited by 62

  15. UK National Screening Committee's approach to reviewing evidence on artificial intelligence in breast cancer screening

    Authors: , , , , , , , , , , , , - The Lancet Digital Health 2022 cited by 62

  16. The Probiotic VSL#3 Has Anti-inflammatory Effects and Could Reduce Endoscopic Recurrence After Surgery for Crohn's Disease

    Authors: , , , , , , , , , , , , , , , , , , , , , - Clinical Gastroenterology and Hepatology 2014 cited by 228

  17. The Toronto Consensus Statements for the Management of Inflammatory Bowel Disease in Pregnancy

    Authors: , , , , , , , , , , , , , , , , , , , - Gastroenterology 2015 cited by 472

  18. Antibiotic Therapy in Inflammatory Bowel Disease: A Systematic Review and Meta-Analysis

    Authors: , , , , , , , - The American Journal of Gastroenterology 2011 cited by 565

  19. Clinical Practice Guidelines for the Medical Management of Nonhospitalized Ulcerative Colitis: The Toronto Consensus

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , - Gastroenterology 2015 cited by 411

  20. Glucocorticosteroid Therapy in Inflammatory Bowel Disease: Systematic Review and Meta-Analysis

    Authors: , , , , , , - The American Journal of Gastroenterology 2011 cited by 326

  21. Systematic Review of the Risk of Enteric Infection in Patients Taking Acid Suppression

    Authors: , , - The American Journal of Gastroenterology 2007 cited by 640

  22. Functional gastrointestinal disorders and mood disorders in patients with inactive inflammatory bowel disease: Prevalence and impact on health

    Authors: , , , - Inflammatory Bowel Diseases 2005 cited by 315

  23. Efficacy of 5-Aminosalicylates in Crohn's Disease: Systematic Review and Meta-Analysis

    Authors: , , , , , , - The American Journal of Gastroenterology 2011 cited by 218

  24. Systematic Review and Meta-Analysis: Infliximab or Cyclosporine as Rescue Therapy in Patients With Severe Ulcerative Colitis Refractory to Steroids

    Authors: , , , , , , - The American Journal of Gastroenterology 2016 cited by 198