R.A. Ulan

19 total papers · 628 total citations
12 papers, 435 citations indexed

About

R.A. Ulan is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Nephrology. According to data from OpenAlex, R.A. Ulan has authored 12 papers receiving a total of 435 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Pulmonary and Respiratory Medicine, 3 papers in Surgery and 3 papers in Nephrology. Recurrent topics in R.A. Ulan’s work include Renal and Vascular Pathologies (3 papers), Organ Donation and Transplantation (3 papers) and Renal Transplantation Outcomes and Treatments (3 papers). R.A. Ulan is often cited by papers focused on Renal and Vascular Pathologies (3 papers), Organ Donation and Transplantation (3 papers) and Renal Transplantation Outcomes and Treatments (3 papers). R.A. Ulan collaborates with scholars based in Canada and United Kingdom. R.A. Ulan's co-authors include Paul Keown, C.R. Stiller, Carl M. Kjellstrand, Andreas Laupacis, N McKenzie, Paul H. Tanser, Thomas E. Wood, Arnold L. Johnson, Nicholas R. StC. Sinclair and William Howson and has published in prestigious journals such as New England Journal of Medicine, The Lancet and The Journal of Urology.

Co-authorship network of co-authors of R.A. Ulan

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

R.A. Ulan

12 papers receiving 385 citations

Fields of papers citing papers by R.A. Ulan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R.A. Ulan. 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 R.A. Ulan. The network helps show where R.A. Ulan may publish in the future.

Countries citing papers authored by R.A. Ulan

Since Specialization
Citations

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