John M. Duggan

1.1k total citations · 1 hit paper
31 papers, 840 citations indexed

About

John M. Duggan is a scholar working on Surgery, Gastroenterology and General Health Professions. According to data from OpenAlex, John M. Duggan has authored 31 papers receiving a total of 840 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Surgery, 8 papers in Gastroenterology and 6 papers in General Health Professions. Recurrent topics in John M. Duggan's work include Helicobacter pylori-related gastroenterology studies (9 papers), Eosinophilic Esophagitis (5 papers) and Colorectal Cancer Screening and Detection (4 papers). John M. Duggan is often cited by papers focused on Helicobacter pylori-related gastroenterology studies (9 papers), Eosinophilic Esophagitis (5 papers) and Colorectal Cancer Screening and Detection (4 papers). John M. Duggan collaborates with scholars based in Australia, United States and Belarus. John M. Duggan's co-authors include Anne Duggan, Johanna Westbrook, Melissa Young, Kerry Inder, Magnus Halland, R. Louise Rushworth, Geoffrey Berry, Anthony Houghton, L. Joseph Melton and Alan R. Zinsmeister and has published in prestigious journals such as Journal of Clinical Epidemiology, Gastrointestinal Endoscopy and Digestive Diseases and Sciences.

In The Last Decade

John M. Duggan

28 papers receiving 796 citations

Hit Papers

Gastric cancer epidemiology and risk factors 2003 2026 2010 2018 2003 200 400 600
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. Gastric cancer epidemiology and risk factors
    2003 608 citations John M. Duggan et al. Journal of Clinical Epidemiology profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
John M. Duggan Australia 10 378 318 178 168 158 31 840
M. D. Gammon United States 7 484 1.3× 242 0.8× 257 1.4× 68 0.4× 146 0.9× 7 851
P. R. Taylor United States 18 794 2.1× 401 1.3× 211 1.2× 335 2.0× 99 0.6× 23 1.5k
Jong-Jae Park South Korea 20 405 1.1× 269 0.8× 131 0.7× 181 1.1× 270 1.7× 56 997
Guang‐wei Xu China 16 485 1.3× 326 1.0× 151 0.8× 284 1.7× 53 0.3× 31 1.0k
Tsuyoshi Yamaguchi Japan 14 262 0.7× 231 0.7× 122 0.7× 174 1.0× 58 0.4× 87 792
Beom Jae Lee South Korea 20 527 1.4× 340 1.1× 210 1.2× 276 1.6× 327 2.1× 93 1.2k
Benjamin Chun Yu Wong Hong Kong 13 399 1.1× 140 0.4× 108 0.6× 162 1.0× 188 1.2× 20 782
W J Blot China 13 949 2.5× 588 1.8× 176 1.0× 125 0.7× 199 1.3× 15 1.3k
Yoon-Ok Ahn South Korea 11 224 0.6× 232 0.7× 157 0.9× 148 0.9× 50 0.3× 13 764
R Castelletto Argentina 11 525 1.4× 130 0.4× 176 1.0× 98 0.6× 222 1.4× 19 968

Countries citing papers authored by John M. Duggan

Since Specialization
Citations

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

Fields of papers citing papers by John M. Duggan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John M. Duggan. 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 John M. Duggan. The network helps show where John M. Duggan may publish in the future.

Co-authorship network of co-authors of John M. Duggan

This figure shows the co-authorship network connecting the top 25 collaborators of John M. Duggan. A scholar is included among the top collaborators of John M. Duggan 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 John M. Duggan. John M. Duggan 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.
Halland, Magnus, et al.. (2010). Characteristics and Outcomes of Upper Gastrointestinal Hemorrhage in a Tertiary Referral Hospital. Digestive Diseases and Sciences. 55(12). 3430–3435. 28 indexed citations
2.
Siderov, Jim & John M. Duggan. (2009). Arsenic trioxide associated toothache. Journal of Oncology Pharmacy Practice. 16(2). 127–128. 4 indexed citations
3.
Duggan, John M.. (2008). Gastrointestinal Hemorrhage: Should We Transfuse Less?. Digestive Diseases and Sciences. 54(8). 1662–1666. 6 indexed citations
4.
Duggan, John M. & Anne Duggan. (2007). Alcohol and hepatitis C. The Medical Journal of Australia. 187(1). 47–48. 11 indexed citations
5.
Duggan, John M. & Anne Duggan. (2006). The possible causes of the pandemic of peptic ulcer in the late 19th and early 20th century. The Medical Journal of Australia. 185(11-12). 667–669. 10 indexed citations
6.
Westbrook, Johanna, Anne Duggan, John M. Duggan, & Mary T. Westbrook. (2005). A 9 year prospective cohort study of endoscoped patients with upper gastrointestinal symptoms. European Journal of Epidemiology. 20(7). 619–627. 8 indexed citations
7.
Duggan, John M.. (2004). Coeliac disease: the great imitator. The Medical Journal of Australia. 180(10). 524–526. 25 indexed citations
8.
Duggan, John M., et al.. (2003). Gastric cancer epidemiology and risk factors. Journal of Clinical Epidemiology. 56(1). 1–9. 608 indexed citations breakdown →
9.
Duggan, John M.. (2001). Colorectal cancer screening:potential pitfalls. Australian Health Review. 24(1). 148–150. 3 indexed citations
10.
Westbrook, Johanna, et al.. (2001). Accuracy of provisional diagnoses of dyspepsia in patients undergoing first endoscopy. Gastrointestinal Endoscopy. 53(3). 283–288. 12 indexed citations
11.
Duggan, John M., Alan R. Zinsmeister, Keith A. Kelly, & L. Joseph Melton. (1999). Long‐term survival among patients operated upon for peptic ulcer disease. Journal of Gastroenterology and Hepatology. 14(11). 1074–1082. 9 indexed citations
12.
Duggan, John M.. (1999). Quality in healthcare in the United Kingdom: lessons for Australia. The Medical Journal of Australia. 170(3). 121–124. 7 indexed citations
13.
Westbrook, Johanna, et al.. (1998). Agreement between Medical Record Data and Patients' Accounts of Their Medical History and Treatment for Dyspepsia. Journal of Clinical Epidemiology. 51(3). 237–244. 21 indexed citations
14.
Duggan, John M.. (1997). The Australian health care system: John Hunter's long shadow. The Medical Journal of Australia. 167(9). 481–483. 1 indexed citations
15.
Duggan, John M.. (1993). Is the Aggressive Management of Peptic Ulcer Justified by the Data?. Journal of Clinical Gastroenterology. 17(2). 109–116. 4 indexed citations
16.
Duggan, John M., E A O'Keefe, Amy L. Weaver, Alan R. Zinsmeister, & L. Joseph Melton. (1992). Diabetes mellitus and operated peptic ulcer disease. Journal of Gastroenterology and Hepatology. 7(3). 308–312. 5 indexed citations
17.
Duggan, John M., et al.. (1992). Aluminium beverage cans as a dietary source of aluminium. The Medical Journal of Australia. 156(9). 604–605. 22 indexed citations
18.
Agrez, Michael, David M. Evans, & John M. Duggan. (1990). FAECAL OCCULT BLOOD TESTING FOR COLORECTAL CANCER: LUXURY OR NECESSITY?. Australian and New Zealand Journal of Surgery. 60(6). 451–454. 3 indexed citations
19.
Duggan, John M.. (1986). Haematemesis patients should be managed in special units. The Medical Journal of Australia. 144(5). 247–250. 7 indexed citations
20.
Duggan, John M.. (1986). Medicare: any cure for the confusion?. The Medical Journal of Australia. 144(2). 97–98. 1 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

Breakdown of academic impact, for papers by M. D. Gammon Breakdown of academic impact, for papers by P. R. Taylor Breakdown of academic impact, for papers by Jong-Jae Park Breakdown of academic impact, for papers by Guang‐wei Xu Breakdown of academic impact, for papers by Tsuyoshi Yamaguchi Breakdown of academic impact, for papers by Beom Jae Lee Breakdown of academic impact, for papers by Benjamin Chun Yu Wong Breakdown of academic impact, for papers by W J Blot Breakdown of academic impact, for papers by Yoon-Ok Ahn Breakdown of academic impact, for papers by R Castelletto
Rankless by CCL
2026