Johann Ockenga

111 papers and 5.9k indexed citations
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About

Johann Ockenga is a scholar working on Surgery, Nutrition and Dietetics and Physiology. According to data from OpenAlex, Johann Ockenga has authored 111 papers receiving a total of 5.9k indexed citations (citations by other indexed papers that have themselves been cited), including 43 papers in Surgery, 33 papers in Nutrition and Dietetics and 31 papers in Physiology. Recurrent topics in Johann Ockenga’s work include Clinical Nutrition and Gastroenterology (30 papers), Pancreatitis Pathology and Treatment (22 papers) and Nutrition and Health in Aging (20 papers). Johann Ockenga is often cited by papers focused on Clinical Nutrition and Gastroenterology (30 papers), Pancreatitis Pathology and Treatment (22 papers) and Nutrition and Health in Aging (20 papers). Johann Ockenga collaborates with scholars based in Germany, Netherlands and Austria. Johann Ockenga's co-authors include Michael P. Manns, M.A.E. de van der Schueren, Maurizio Muscaritoli, A. Van Gossum, Herbert Lochs, S. Schneider, Tommy Cederholm, Stanisław Kłęk, Rocco Barazzoni and Ingvar Bosæus and has published in prestigious journals such as New England Journal of Medicine, Journal of Clinical Investigation and Gastroenterology.

In The Last Decade

Co-authorship network of co-authors of Johann Ockenga

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

Fields of papers citing papers by Johann Ockenga

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Johann Ockenga

Since Specialization
Citations

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