Ronald J. Schlemper

8.5k total citations · 2 hit papers
25 papers, 6.5k citations indexed

About

Ronald J. Schlemper is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Gastroenterology. According to data from OpenAlex, Ronald J. Schlemper has authored 25 papers receiving a total of 6.5k indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Surgery, 11 papers in Pulmonary and Respiratory Medicine and 6 papers in Gastroenterology. Recurrent topics in Ronald J. Schlemper's work include Helicobacter pylori-related gastroenterology studies (14 papers), Gastric Cancer Management and Outcomes (10 papers) and Esophageal Cancer Research and Treatment (7 papers). Ronald J. Schlemper is often cited by papers focused on Helicobacter pylori-related gastroenterology studies (14 papers), Gastric Cancer Management and Outcomes (10 papers) and Esophageal Cancer Research and Treatment (7 papers). Ronald J. Schlemper collaborates with scholars based in Japan, Netherlands and Germany. Ronald J. Schlemper's co-authors include Kiyomi Taniyama, Naomi Uemura, Nobutoshi Matsumura, Naomi Sasaki, Michio Yamakido, Shiro Okamoto, Soichiro Yamamoto, Shuji Yamaguchi, Manfred Stolte and Yo Kato and has published in prestigious journals such as New England Journal of Medicine, The Lancet and Nature Genetics.

In The Last Decade

Ronald J. Schlemper

25 papers receiving 6.3k 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.

Helicobacter pylori Infection and the Development of Gastric Cancer

2001 3.5k citations Naomi Uemura, Shiro Okamoto et al. New England Journal of Medicine profile →
The Vienna classification of gastrointestinal epithelial neoplasia

2000 1.6k citations Ronald J. Schlemper et al. Gut profile →

Peers

Countries citing papers authored by Ronald J. Schlemper

Since Specialization

Citations

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

Fields of papers citing papers by Ronald J. Schlemper

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ronald J. Schlemper. 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 Ronald J. Schlemper. The network helps show where Ronald J. Schlemper may publish in the future.

Co-authorship network of co-authors of Ronald J. Schlemper

This figure shows the co-authorship network connecting the top 25 collaborators of Ronald J. Schlemper. A scholar is included among the top collaborators of Ronald J. Schlemper 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 Ronald J. Schlemper. Ronald J. Schlemper 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

#	Work	Indexed citations
1	Colonoscopy in the diagnosis of intestinal tuberculosis in asymptomatic patients 2004 ·Gastrointestinal Endoscopy ·Shigeru Sato, Kenshi Yao, Tsuneyoshi Yao, Ronald J. Schlemper, Toshiyuki Matsui, Toshihiro Sakurai, Akinori Iwashita	42
2	Mesenteric phlebosclerosis: a new disease entity causing ischemic colitis. 2003 ·PubMed ·Akinori Iwashita, Tsuneyoshi Yao, Ronald J. Schlemper, Yasuyuki Kuwano, Takashi Yao, Mitsuo Iida, Takayuki Matsumoto, Masahiro Kikuchi	81
3	The Macroscopic Classification of Early Neoplasia of the Digestive Tract 2002 ·Endoscopy ·Ronald J. Schlemper, I Hirata, Michael F. Dixon	36
4	Helicobacter pylori Infection and the Development of Gastric Cancer breakdown → 2001 ·New England Journal of Medicine ·Naomi Uemura, Shiro Okamoto, Soichiro Yamamoto, Nobutoshi Matsumura, Shuji Yamaguchi, Michio Yamakido, Kiyomi Taniyama, Naomi Sasaki, Ronald J. Schlemper	3523
5	Review of histological classifications of gastrointestinal epithelial neoplasia: differences in diagnosis of early carcinomas between Japanese and Western pathologists 2001 ·Journal of Gastroenterology ·Ronald J. Schlemper, Yo Kato, Manfred Stolte	118
6	International comparability of the pathological diagnosis for early cancer of the digestive tract: Munich meeting. 2000 ·PubMed ·Ronald J. Schlemper, F Borchard, M F Dixon, Masato Koike, Jennifer J. Mueller, M Stolte, Hirohisa Watanabe	14
7	The Vienna classification of gastrointestinal epithelial neoplasia breakdown → 2000 ·Gut ·Ronald J. Schlemper, (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown)	1577
8	Phlebosclerotic Colitis: Value of Radiography in Diagnosis—Report of Three Cases 2000 ·Radiology ·Tsuneyoshi Yao, Akinori Iwashita, Toshio Hoashi, (unknown), Toshihiro Sakurai, Sumitaka Arima, Hiroyuki ONO, Ronald J. Schlemper	81
9	Differences in diagnostic criteria for esophageal squamous cell carcinoma between Japanese and Western pathologists 2000 ·Cancer ·Ronald J. Schlemper, Sanford M. Dawsey, Masayuki Itabashi, Akinori Iwashita, (unknown), Morio Koike, (unknown), R H Riddell, Tadakazu Shimoda, P. Sipponen, Manfred Stolte, Hidenobu Watanabe	67
10	Diagnostic criteria for gastrointestinal carcinomas in Japan and Western countries: Proposal for a new classification system of gastrointestinal epithelial neoplasia 2000 ·Journal of Gastroenterology and Hepatology ·Ronald J. Schlemper, Yo Kato, Manfred Stolte	91
11	Well-differentiated adenocarcinoma or dysplasia of the gastric epithelium: rationale for a new classification system. 1999 ·PubMed ·Ronald J. Schlemper, Yukinari Kato, M. Stolte	14
12	An activating splice donor mutation in the thrombopoietin gene causes hereditary thrombocythaemia 1998 ·Nature Genetics ·Adrian Wiestner, Ronald J. Schlemper, A. P. C. van der Maas, Radek C. Skoda	227
13	Differences in the diagnostic criteria used by japanese and western pathologists to diagnose colorectal carcinoma 1998 ·Cancer ·Ronald J. Schlemper, Masayuki Itabashi, Yo Kato, Klaus J. Lewin, Robert H. Riddell, Tadakazu Shimoda, P. Sipponen, Manfred Stolte, Hidenobu Watanabe	111
14	Differences in diagnostic criteria for gastric carcinoma between Japanese and Western pathologists 1997 ·The Lancet ·Ronald J. Schlemper, Masayuki Itabashi, Yo Kato, Klaus J. Lewin, Robert H. Riddell, (unknown), P. Sipponen, Manfred Stolte, (unknown), Hiroshi Takahashi, Rikiya Fujita	275
15	Seroepidemiology of gastritis in Japanese and Dutch male employees with and without ulcer disease 1996 ·European Journal of Gastroenterology & Hepatology ·Ronald J. Schlemper, S. D. J. Van Der Werf, Izäk Biemond, C. B. H. W. Lamers	28
16	Risk factors of peptic ulcer disease: Different impact of Helicobacter pylori in Dutch and Japanese populations? 1996 ·Journal of Gastroenterology and Hepatology ·Ronald J. Schlemper, S D van der Werf, Jan P. Vandenbroucke, (unknown), Cornelis Bhw Lamers	11
17	Dyspepsia and Helicobacter pylori in Japanese employees with and without ulcer history 1995 ·Journal of Gastroenterology and Hepatology ·Ronald J. Schlemper, S D van der Werf, (unknown), Cornelis Bhw Lamers	12
18	Seroepidemiology of gastritis in Japanese and Dutch working populations: evidence for the development of atrophic gastritis that is not related to Helicobacter pylori. 1995 ·Gut ·Ronald J. Schlemper, S D van der Werf, Jan P. Vandenbroucke, I. Biemond, C. B. H. W. Lamers	34
19	Familial essential thrombocythemia: Clinical characteristics of 11 cases in one family 1994 ·Annals of Hematology ·Ronald J. Schlemper, A. P. C. van der Maas, Jeroen Eikenboom	29
20	Peptic Ulcer, Non-Ulcer Dyspepsia and Irritable Bowel Syndrome in the Netherlands and Japan 1993 ·Scandinavian Journal of Gastroenterology ·Ronald J. Schlemper, S. D. J. Van Der Werf, Jan P. Vandenbroucke, I. Biemond, C. B. H. W. Lamers	77

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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