Claus U. Niemann

102 papers and 2.9k indexed citations i.

About

Claus U. Niemann is a scholar working on Surgery, Hepatology and Public Health, Environmental and Occupational Health. According to data from OpenAlex, Claus U. Niemann has authored 102 papers receiving a total of 2.9k indexed citations (citations by other indexed papers that have themselves been cited), including 74 papers in Surgery, 39 papers in Hepatology and 23 papers in Public Health, Environmental and Occupational Health. Recurrent topics in Claus U. Niemann’s work include Organ Transplantation Techniques and Outcomes (61 papers), Liver Disease and Transplantation (38 papers) and Organ Donation and Transplantation (23 papers). Claus U. Niemann is often cited by papers focused on Organ Transplantation Techniques and Outcomes (61 papers), Liver Disease and Transplantation (38 papers) and Organ Donation and Transplantation (23 papers). Claus U. Niemann collaborates with scholars based in United States, Germany and South Korea. Claus U. Niemann's co-authors include Natalie J. Serkova, Ryutaro Hirose, John P. Roberts, Chris E. Freise, Tom Florian Fuller, Jost Klawitter, Matthias Behrends, John Feiner, Michael J. Avram and Thomas K. Henthorn and has published in prestigious journals such as Science, New England Journal of Medicine and PLoS ONE.

In The Last Decade

Co-authorship network of co-authors of Claus U. Niemann i

Fields of papers citing papers by Claus U. Niemann

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Claus U. Niemann. 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 Claus U. Niemann. The network helps show where Claus U. Niemann may publish in the future.

Countries citing papers authored by Claus U. Niemann

Since Specialization
Citations

This map shows the geographic impact of Claus U. Niemann'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 Claus U. Niemann with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Claus U. Niemann 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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2025