Ronald Hapke

1.0k total citations
12 papers, 804 citations indexed

About

Ronald Hapke is a scholar working on Surgery, Epidemiology and Gastroenterology. According to data from OpenAlex, Ronald Hapke has authored 12 papers receiving a total of 804 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Surgery, 5 papers in Epidemiology and 4 papers in Gastroenterology. Recurrent topics in Ronald Hapke's work include Liver Disease and Transplantation (3 papers), Liver Disease Diagnosis and Treatment (3 papers) and Gastroesophageal reflux and treatments (2 papers). Ronald Hapke is often cited by papers focused on Liver Disease and Transplantation (3 papers), Liver Disease Diagnosis and Treatment (3 papers) and Gastroesophageal reflux and treatments (2 papers). Ronald Hapke collaborates with scholars based in United States and India. Ronald Hapke's co-authors include Peter R. Huttenlocher, Atif Zaman, Kenneth D. Flora, Kent G. Benner, Hugo R. Rosen, Ronald M. Katon, Martin Hahn, Kandice Knigge, M. Brian Fennerty and David Y. Graham and has published in prestigious journals such as Cancer, Annals of Neurology and The American Journal of Gastroenterology.

In The Last Decade

Ronald Hapke

11 papers receiving 770 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ronald Hapke United States 9 471 222 218 215 156 12 804
J Devlin United Kingdom 10 301 0.6× 69 0.3× 171 0.8× 274 1.3× 36 0.2× 22 622
A Ciccone Italy 11 163 0.3× 58 0.3× 72 0.3× 12 0.1× 143 0.9× 18 405
Lina Lindström Sweden 8 327 0.7× 281 1.3× 201 0.9× 298 1.4× 213 1.4× 12 686
David D. Stephenson United States 13 172 0.4× 112 0.5× 441 2.0× 34 0.2× 25 0.2× 35 743
Chan Sup Shim South Korea 12 126 0.3× 110 0.5× 116 0.5× 40 0.2× 87 0.6× 26 434
Maria Fotoulaki Greece 16 261 0.6× 145 0.7× 144 0.7× 18 0.1× 228 1.5× 52 618
Alex Fich Israel 16 297 0.6× 284 1.3× 92 0.4× 26 0.1× 75 0.5× 32 618
NG Morgenthaler Germany 14 80 0.2× 63 0.3× 165 0.8× 12 0.1× 221 1.4× 25 633
Takenobu Koizumi Japan 13 193 0.4× 16 0.1× 78 0.4× 29 0.1× 237 1.5× 25 560
Kenneth Manas United States 11 165 0.4× 33 0.1× 58 0.3× 20 0.1× 21 0.1× 21 376

Countries citing papers authored by Ronald Hapke

Since Specialization
Citations

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

Fields of papers citing papers by Ronald Hapke

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ronald Hapke

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

All Works

12 of 12 papers shown
1.
El‐Serag, Hashem B., John Y. Kao, Fasiha Kanwal, et al.. (2018). Houston Consensus Conference on Testing for Helicobacter pylori Infection in the United States. Clinical Gastroenterology and Hepatology. 16(7). 992–1002.e6. 183 indexed citations
2.
Zaman, Atif, Ronald Hapke, Kenneth D. Flora, Hugo R. Rosen, & Kent G. Benner. (2004). Changing Compliance to the American College of Gastroenterology Guidelines for the Management of Variceal Hemorrhage: A Regional Survey. The American Journal of Gastroenterology. 99(4). 645–649. 28 indexed citations
3.
Zaman, Atif, Ronald Hapke, Kenneth D. Flora, Hugo R. Rosen, & Kent G. Benner. (1999). Prevalence of Upper and Lower Gastrointestinal Tract Findings in Liver Transplant Candidates Undergoing Screening Endoscopic Evaluation. The American Journal of Gastroenterology. 94(4). 895–899. 79 indexed citations
4.
Zaman, Atif, Ronald Hapke, Kenneth D. Flora, Hugo R. Rosen, & Kent G. Benner. (1999). Factors Predicting The Presence of Esophageal or Gastric Varices in Patients With Advanced Liver Disease. The American Journal of Gastroenterology. 94(11). 3292–3296. 127 indexed citations
5.
Zaman, Atif, Martin Hahn, Ronald Hapke, et al.. (1999). A randomized trial of peroral versus transnasal unsedated endoscopy using an ultrathin videoendoscope. Gastrointestinal Endoscopy. 49(3). 279–284. 109 indexed citations
6.
Hapke, Ronald, Kenneth D. Flora, Atif Zaman, Hugo R. Rosen, & Kent G. Benner. (1999). Prevalence of upper and lower gastrointestinal tract findings in liver transplant candidates undergoing screening endoscopic evaluation. Am J Gastroenterol 94: 895-899. 8 indexed citations
7.
Hapke, Ronald, et al.. (1998). Unsedated Peroral Endoscopy With a Video Ultrathin Endoscope: Patient Acceptance, Tolerance, and Diagnostic Accuracy. The American Journal of Gastroenterology. 93(8). 1260–1263. 68 indexed citations
8.
Cooper, Gregory S., Richard H. Fortinsky, Ronald Hapke, & C. Seth Landefeld. (1998). Factors associated with the use of flexible sigmoidoscopy as a screening test for the detection of colorectal carcinoma by primary care physicians. Cancer. 82(8). 1476–1481. 37 indexed citations
9.
Cooper, Gregory S., Richard H. Fortinsky, Ronald Hapke, & C. Seth Landefeld. (1998). Factors associated with the use of flexible sigmoidoscopy as a screening test for the detection of colorectal carcinoma by primary care physicians. Cancer. 82(8). 1476–1481. 4 indexed citations
10.
Hapke, Ronald, Christopher L. Corless, & Ronald M. Katon. (1997). Isolated jejunal Crohn's disease in a young woman presenting with malabsorption syndrome and abdominal pain.. PubMed. 92(10). 1916–9. 2 indexed citations
11.
Hapke, Ronald, et al.. (1997). Unsedated peroral endoscopy with a new video ultrathin (UT) endoscope: Patient acceptance, tolerance and diagnostic accuracy. Gastrointestinal Endoscopy. 45(4). AB44–AB44. 1 indexed citations
12.
Huttenlocher, Peter R. & Ronald Hapke. (1990). A follow‐up study of intractable seizures in childhood. Annals of Neurology. 28(5). 699–705. 158 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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