Ralph Keller

9 total papers · 711 total citations
6 papers, 363 citations indexed

About

Ralph Keller is a scholar working on Oncology, Pulmonary and Respiratory Medicine and Gastroenterology. According to data from OpenAlex, Ralph Keller has authored 6 papers receiving a total of 363 indexed citations (citations by other indexed papers that have themselves been cited), including 3 papers in Oncology, 3 papers in Pulmonary and Respiratory Medicine and 2 papers in Gastroenterology. Recurrent topics in Ralph Keller’s work include Pharmaceutical studies and practices (1 paper), Colorectal Cancer Surgical Treatments (1 paper) and Esophageal Cancer Research and Treatment (1 paper). Ralph Keller is often cited by papers focused on Pharmaceutical studies and practices (1 paper), Colorectal Cancer Surgical Treatments (1 paper) and Esophageal Cancer Research and Treatment (1 paper). Ralph Keller collaborates with scholars based in Germany, Austria and Israel. Ralph Keller's co-authors include Kurt Werner Schmid, G Winde, H. Nottberg, H. Bünte, Ullrich Graeven, Kirsten Merx, Andrea Tannapfel, Michael Pohl, Salah‐Eddin Al‐Batran and Nils Homann and has published in prestigious journals such as Journal of Clinical Oncology, International Journal of Cancer and Experimental Biology and Medicine.

Co-authorship network of co-authors of Ralph Keller

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

Ralph Keller

5 papers receiving 331 citations

Fields of papers citing papers by Ralph Keller

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Ralph Keller

Since Specialization
Citations

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

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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2026