John Maret‐Ouda

1.3k total citations · 1 hit paper
31 papers, 773 citations indexed

About

John Maret‐Ouda is a scholar working on Surgery, Gastroenterology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, John Maret‐Ouda has authored 31 papers receiving a total of 773 indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Surgery, 18 papers in Gastroenterology and 9 papers in Pulmonary and Respiratory Medicine. Recurrent topics in John Maret‐Ouda's work include Gastroesophageal reflux and treatments (17 papers), Esophageal Cancer Research and Treatment (9 papers) and Esophageal and GI Pathology (9 papers). John Maret‐Ouda is often cited by papers focused on Gastroesophageal reflux and treatments (17 papers), Esophageal Cancer Research and Treatment (9 papers) and Esophageal and GI Pathology (9 papers). John Maret‐Ouda collaborates with scholars based in Sweden, United Kingdom and Norway. John Maret‐Ouda's co-authors include Jesper Lagergren, Sheraz R. Markar, Hashem B. El‐Serag, Karl Wahlin, Nele Brusselaers, Wenjing Tao, Peter Könings, Giola Santoni, My von Euler‐Chelpin and Fredrik Mattsson and has published in prestigious journals such as JAMA, Gastroenterology and Annals of Surgery.

In The Last Decade

John Maret‐Ouda

31 papers receiving 762 citations

Hit Papers

align trajectories

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.

Gastroesophageal Reflux Disease

2020 201 citations John Maret‐Ouda, Sheraz R. Markar et al. JAMA profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
John Maret‐Ouda Sweden	14	505	392	160	66	65	31	773
Ricard Corcelles United States	17	583 1.2×	130 0.3×	165 1.0×	51 0.8×	62 1.0×	59	767
Francis E. Cook United States	8	321 0.6×	263 0.7×	81 0.5×	35 0.5×	25 0.4×	11	724
Philip Harvey United Kingdom	14	195 0.4×	77 0.2×	99 0.6×	19 0.3×	62 1.0×	48	542
Lawrence MJ Best United Kingdom	15	333 0.7×	88 0.2×	229 1.4×	36 0.5×	69 1.1×	28	720
Christopher R. Daigle United States	19	777 1.5×	106 0.3×	117 0.7×	123 1.9×	29 0.4×	45	961
Matthew Lin United States	14	650 1.3×	69 0.2×	156 1.0×	77 1.2×	84 1.3×	40	846
G Cesana Italy	16	635 1.3×	110 0.3×	185 1.2×	71 1.1×	286 4.4×	82	1.1k
Sarina Pasricha United States	11	1.1k 2.2×	315 0.8×	386 2.4×	23 0.3×	230 3.5×	25	1.3k
Guy Blackshaw United Kingdom	17	439 0.9×	139 0.4×	460 2.9×	33 0.5×	207 3.2×	33	790
Nicola Gennaro Italy	14	156 0.3×	67 0.2×	48 0.3×	161 2.4×	88 1.4×	41	592

Countries citing papers authored by John Maret‐Ouda

Since Specialization

Citations

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

Fields of papers citing papers by John Maret‐Ouda

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John Maret‐Ouda. 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 Maret‐Ouda. The network helps show where John Maret‐Ouda may publish in the future.

Co-authorship network of co-authors of John Maret‐Ouda

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

All Works

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20 of 20 papers shown

Maret‐Ouda, John, Viktor Oskarsson, Mats Lindblad, et al.. (2025). Long‐Term Mortality in Acute Pancreatitis—A Population‐Based Cohort Study. United European Gastroenterology Journal. 13(4). 640–649. 2 indexed citations

Maret‐Ouda, John, Viktor Oskarsson, Mats Lindblad, et al.. (2024). Exploring the association between acute pancreatitis and biliary tract cancer: A large‐scale population‐based matched cohort study. United European Gastroenterology Journal. 12(6). 726–736. 2 indexed citations

Holmberg, Dag, Giola Santoni, My von Euler‐Chelpin, et al.. (2023). Non-erosive gastro-oesophageal reflux disease and incidence of oesophageal adenocarcinoma in three Nordic countries: population based cohort study. BMJ. 382. e076017–e076017. 6 indexed citations

Emilsson, Louise, John Maret‐Ouda, & Jonas F. Ludvigsson. (2023). Mortality in small bowel cancers and adenomas – A nationwide, population-based matched cohort study. Cancer Epidemiology. 85. 102399–102399. 1 indexed citations

Maret‐Ouda, John, et al.. (2023). Proton pump inhibitor use and risk of pneumonia: a self-controlled case series study. Journal of Gastroenterology. 58(8). 734–740. 11 indexed citations

Lindblad, Mats, et al.. (2022). Cohort profile: the Swedish Pancreatitis Cohort (SwePan). BMJ Open. 12(5). e059877–e059877. 4 indexed citations

Maret‐Ouda, John, Björn Roelstraete, Louise Emilsson, et al.. (2022). Appendectomy and Future Risk of Microscopic Colitis: A Population-Based Case-Control Study in Sweden. Clinical Gastroenterology and Hepatology. 21(2). 467–475.e2. 1 indexed citations

Santoni, Giola, John Maret‐Ouda, Sheraz R. Markar, et al.. (2021). Mortality, Reoperation, and Hospital Stay Within 90 Days of Primary and Secondary Antireflux Surgery in a Population-Based Multinational Study. Gastroenterology. 160(7). 2283–2290. 8 indexed citations

Maret‐Ouda, John, Giola Santoni, Shao-Hua Xie, Annika Rosengren, & Jesper Lagergren. (2021). Proton Pump Inhibitor and Clopidogrel Use After Percutaneous Coronary Intervention and Risk of Major Cardiovascular Events. Cardiovascular Drugs and Therapy. 36(6). 1121–1128. 15 indexed citations

10.

Holmberg, Dag, Giola Santoni, My von Euler‐Chelpin, et al.. (2021). Incidence and Mortality in Upper Gastrointestinal Cancer After Negative Endoscopy for Gastroesophageal Reflux Disease. Gastroenterology. 162(2). 431–438.e4. 14 indexed citations

11.

Santoni, Giola, John Maret‐Ouda, Eivind Ness‐Jensen, et al.. (2020). Laryngeal and Pharyngeal Squamous Cell Carcinoma After Antireflux Surgery in the 5 Nordic Countries. Annals of Surgery. 276(2). e79–e85. 7 indexed citations

12.

Maret‐Ouda, John, Sheraz R. Markar, & Jesper Lagergren. (2020). Gastroesophageal Reflux Disease. JAMA. 324(24). 2565–2565. 38 indexed citations

13.

Maret‐Ouda, John, Giola Santoni, Miia Artama, et al.. (2020). Aspiration pneumonia after antireflux surgery among neurologically impaired children with GERD. Journal of Pediatric Surgery. 55(11). 2408–2412. 9 indexed citations

14.

Maret‐Ouda, John, Karl Wahlin, Miia Artama, et al.. (2017). Cohort profile: the Nordic Antireflux Surgery Cohort (NordASCo). BMJ Open. 7(6). e016505–e016505. 14 indexed citations

15.

Maret‐Ouda, John, Karl Wahlin, Hashem B. El‐Serag, & Jesper Lagergren. (2017). Association Between Laparoscopic Antireflux Surgery and Recurrence of Gastroesophageal Reflux. JAMA. 318(10). 939–939. 89 indexed citations

16.

Maret‐Ouda, John, et al.. (2016). Mortality from laparoscopic antireflux surgery in a nationwide cohort of the working-age population. British journal of surgery. 103(7). 863–870. 19 indexed citations

17.

Maret‐Ouda, John & Jesper Lagergren. (2016). The risk of mortality following secondary fundoplication in a population-based cohort study. The American Journal of Surgery. 213(6). 1160–1162. 5 indexed citations

18.

Maret‐Ouda, John, Wenjing Tao, Fredrik Mattsson, et al.. (2015). Esophageal adenocarcinoma after obesity surgery in a population-based cohort study. Surgery for Obesity and Related Diseases. 13(1). 28–34. 35 indexed citations

19.

Maret‐Ouda, John, Peter Könings, Jesper Lagergren, & Nele Brusselaers. (2015). Antireflux Surgery and Risk of Esophageal Adenocarcinoma. Annals of Surgery. 263(2). 251–257. 40 indexed citations

20.

Blomstrand, Peter, Martin Engvall, Karin Festin, et al.. (2015). Left ventricular diastolic function, assessed by echocardiography and tissue Doppler imaging, is a strong predictor of cardiovascular events, superior to global left ventricular longitudinal strain, in patients with type 2 diabetes. European Heart Journal - Cardiovascular Imaging. 16(9). 1000–7. 43 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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