R Ammann
Impact in
Papers in
- Surgery 21
- Pancreatitis Pathology and Treatment 14
- Eosinophilic Esophagitis 5
- Helicobacter pylori-related gastroenterology studies 4
-
- Gastric Cancer Management and Outcomes 3
- Co-authors
- Generoso Uomo (1 shared paper)Markus M. Lerch (1 shared paper)Deborah Stocken (1 shared paper)William Greenhalf (1 shared paper)Giorgio Cavallini (1 shared paper)Ian O. Ellis (1 shared paper)Nathan Howes (1 shared paper)Roger Mountford (1 shared paper)
- Journals
- Digestion (3 papers)Endoscopy (1 paper)Clinical Gastroenterology and Hepatology (1 paper)Histopathology (1 paper)Scandinavian Journal of Gastroenterology (1 paper)
- Partner nations
- SwitzerlandBelgiumIreland
In The Last Decade
R Ammann
32 papers receiving 542 citations
Peers
Comparison fields: 5 of 53
- Oncology 246
- Surgery 379
- Gastroenterology 29
- Cancer Research 48
- Epidemiology 77
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-authors
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
Showing the 20 most-cited of 34 papers — load more, or switch the sort, to bring in the rest.
| # | Work | ||
|---|---|---|---|
| 1 | 2004 | 398 | |
| 2 | [Omeprazole/amoxicillin: improved eradication of Helicobacter pylori in smokers because of N-acetylcysteine]. | 1994 | 21 |
| 3 | 1984 | 16 | |
| 4 | [Mesenterial anemia as a cause of jogging anemia?]. | 1986 | 16 |
| 5 | 1985 | 10 | |
| 6 | 1985 | 10 | |
| 7 | [Eosinophilia in primary biliary cirrhosis: regression under therapy with ursodeoxycholic acid]. | 1994 | 7 |
| 8 | [Glucagon producing adenomatosis of Islands of Langerhans with polyendocrine symptoms]. | 1976 | 6 |
| 9 | 1991 | 6 | |
| 10 | [Omeprazole/amoxicillin: impaired eradication of Helicobacter pylori in smoking but not in premedication with omeprazole]. | 1994 | 6 |
| 11 | [Helicobacter pylori colonization of the gastric remnant following partial resection]. | 1992 | 6 |
| 12 | [Transient eosinophilia in primary biliary cirrhosis]. | 1993 | 5 |
| 13 | 2009 | 5 | |
| 14 | [Clinical significance of colonic angiodysplasias]. | 1984 | 5 |
| 15 | [PABA test versus chymotrypsin and fat determinations in the stool in pancreatic functional diagnosis]. | 1979 | 5 |
| 16 | [Diagnosis and therapy of chronic pancreatitis]. | 1974 | 4 |
| 17 | 1972 | 4 | |
| 18 | 2009 | 4 | |
| 19 | [Chronic pancreatitis and primary hyperparathyroidism]. | 1994 | 4 |
| 20 | [Gastroenterologic roentgen quiz]. | 1977 | 3 |
About R Ammann
R Ammann is a scholar working on Surgery, Pulmonary and Respiratory Medicine, Epidemiology, Nephrology and Oncology, having authored 34 papers that have together received 563 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), Liver Disease Diagnosis and Treatment (3 papers), Pancreatic and Hepatic Oncology Research (3 papers), Gastric Cancer Management and Outcomes (3 papers), Digestive system and related health (2 papers) and Eosinophilic Disorders and Syndromes (2 papers). The work is most often cited by research in Oncology (246 citations), Surgery (379 citations), Gastroenterology (29 citations), Cancer Research (48 citations) and Epidemiology (77 citations). R Ammann has collaborated with scholars based in Switzerland, Belgium and Ireland. Frequent co-authors include Generoso Uomo, Markus M. Lerch, Deborah Stocken, William Greenhalf, Giorgio Cavallini, Ian O. Ellis, Nathan Howes, Roger Mountford, Julius Špičák and Brendan Drumm. 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.