R Ammann
- Oncology top 10%
- Pancreatic and Hepatic Oncology Research 4
- Surgery top 10%
- Pancreatitis Pathology and Treatment 14
- Eosinophilic Esophagitis 5
- Helicobacter pylori-related gastroenterology studies 4
- Gastrointestinal disorders and treatments 2
- Gastroenterology top 10%
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- Liver Disease Diagnosis and Treatment 3
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- Gastric Cancer Management and Outcomes 3
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- Eosinophilic Disorders and Syndromes 2
- Co-authors
- William GreenhalfJan B.�M.�J. JansenKaspar TruningerGiorgio CavalliniPéter SimonDavid C. WhitcombRichard CharnleyNathan Howes
- Cited by
- OncologySurgeryGastroenterology
- Partner nations
- SwitzerlandCzechiaUnited Kingdom
In The Last Decade
R Ammann
33 papers receiving 603 citations
Peers
Comparison fields: 5 of 59
- Oncology 360
- Surgery 476
- Gastroenterology 43
- Cancer Research 58
- Epidemiology 121
Countries citing papers authored by R Ammann
This map shows the geographic impact of R Ammann'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 R Ammann with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R Ammann more than expected).
Fields of papers citing papers by R Ammann
This network shows the impact of papers produced by R Ammann. 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 R Ammann. The network helps show where R Ammann may publish in the future.
Co-authorship network
The 25 scholars most cited alongside R Ammann, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.
All Works
| # | Work | ||
|---|---|---|---|
| 1 | 2004 | 397 | |
| 2 | [Omeprazole/amoxicillin: improved eradication of Helicobacter pylori in smokers because of N-acetylcysteine]. | 1994 | 21 |
| 3 | [Eosinophilia in primary biliary cirrhosis: regression under therapy with ursodeoxycholic acid]. | 1994 | 7 |
| 4 | [Eradication of metronidazole-resistant Helicobacter pylori: is omeprazole/amoxicillin a therapeutic alternative?]. | 1994 | 0 |
| 5 | [Transient eosinophilia in primary biliary cirrhosis]. | 1993 | 5 |
| 6 | 1991 | 6 | |
| 7 | [Changes in the serum pancreas enzyme following i.v. stimulation with secretin in subjects with a normal pancreas]. | 1987 | 3 |
| 8 | 1984 | 5 | |
| 9 | [Results of electrocoagulation of angiodysplasia of the colon]. | 1984 | 1 |
| 10 | 1984 | 16 | |
| 11 | Quantitative assessment of duodenogastric reflux after vagotomy with or without pyloroplasty-A clinical investigation. | 1981 | 3 |
| 12 | 1981 | 1 | |
| 13 | [Long-term course and therapy of chronic recurrent pancreatitis]. | 1979 | 1 |
| 14 | [Gastroenterologic roentgen quiz]. | 1977 | 3 |
| 15 | [Glucagon producing adenomatosis of Islands of Langerhans with polyendocrine symptoms]. | 1976 | 6 |
| 16 | [Vascular origin of chronic pancreatitis. Facts and hypotheses]. | 1976 | 1 |
| 17 | [Diagnosis and differential diagnosis of pancreatitis--diagnostic relevance of clinical and biochemical changes during the course of the disease and of endoscopic retrograde pancreatography (author's transl)]. | 1976 | 3 |
| 18 | [Diagnosis and therapy of chronic pancreatitis]. | 1974 | 4 |
| 19 | 1973 | 35 | |
| 20 | 1972 | 4 |
About R Ammann
R Ammann is a scholar working on Gastroenterology, Surgery, Nephrology, Hepatology and Oncology, having authored 34 papers that have together received 629 indexed citations. Recurring topics across this work include Pancreatitis Pathology and Treatment (14 papers), Eosinophilic Esophagitis (5 papers), Helicobacter pylori-related gastroenterology studies (4 papers), Pancreatic and Hepatic Oncology Research (4 papers), Liver Disease Diagnosis and Treatment (3 papers), Gastric Cancer Management and Outcomes (3 papers), Gastrointestinal disorders and treatments (2 papers) and Eosinophilic Disorders and Syndromes (2 papers). The work is most often cited by research in Oncology (360 citations), Surgery (476 citations), Gastroenterology (43 citations), Cancer Research (58 citations) and Epidemiology (121 citations). R Ammann has collaborated with scholars based in Switzerland, Czechia and United Kingdom. Frequent co-authors include William Greenhalf, Jan B.�M.�J. Jansen, Kaspar Truninger, Giorgio Cavallini, Péter Simon, David C. Whitcomb, Richard Charnley, Nathan Howes, John P. Neoptolemos and Ian O. Ellis. Their work appears in journals such as Digestion, Endoscopy, Clinical Gastroenterology and Hepatology, Histopathology and Scandinavian Journal of Gastroenterology.
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.