This map shows the geographic impact of U Graefe'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 U Graefe with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites U Graefe more than expected).
This network shows the impact of papers produced by U Graefe. 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 U Graefe. The network helps show where U Graefe may publish in the future.
Co-authorship network of co-authors of U Graefe
This figure shows the co-authorship network connecting the top 25 collaborators of U Graefe.
A scholar is included among the top collaborators of U Graefe 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 U Graefe. U Graefe is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Henning, Bernhard F., Walter Zidek, Reiner Riezler, U Graefe, & Martin Tepel. (2001). Homocyst(e)ine metabolism in hemodialysis patients treated with vitamins B6, B12 and folate.. PubMed. 200(3). 155–68.16 indexed citations
Langer, Klaus, et al.. (1990). [Long-term results following kidney transplantation. An empirical analysis of 467 allogeneic kidney transplants concerning the effect of clinical and immunological variables on graft function].. PubMed. 85(11). 637–42.1 indexed citations
10.
Vischer, Peter, et al.. (1989). Chronic renal failure and atherogenesis. Influence of serum factors on prostaglandin synthesis in endothelial cells.. PubMed. 301. 383–8.1 indexed citations
Milutinovic, Jovan, et al.. (1978). Mathematical formulation of the dialysis index for middle molecules, D1(MM).. PubMed. 2(1). 51–4.2 indexed citations
Graefe, U, et al.. (1977). Improved tolerance to rapid ultrafiltration with the use of bicarbonate in dialysate.. PubMed. 14. 153–9.6 indexed citations
Graefe, U, et al.. (1976). Reduction in dialysis-induced morbidity and vascular instability with the use of bicarbonate in dialysate.. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 6. 203–9.20 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.