Ralph Ullman

14 papers and 621 indexed citations i.

About

Ralph Ullman is a scholar working on Pulmonary and Respiratory Medicine, Oncology and Economics and Econometrics. According to data from OpenAlex, Ralph Ullman has authored 14 papers receiving a total of 621 indexed citations (citations by other indexed papers that have themselves been cited), including 4 papers in Pulmonary and Respiratory Medicine, 4 papers in Oncology and 4 papers in Economics and Econometrics. Recurrent topics in Ralph Ullman’s work include Healthcare Policy and Management (4 papers), Colorectal Cancer Screening and Detection (3 papers) and Global Cancer Incidence and Screening (3 papers). Ralph Ullman is often cited by papers focused on Healthcare Policy and Management (4 papers), Colorectal Cancer Screening and Detection (3 papers) and Global Cancer Incidence and Screening (3 papers). Ralph Ullman collaborates with scholars based in United States. Ralph Ullman's co-authors include Celia Shmukler, William C. Stratmann, Mary E. Charlson, Martin T. Wells, Elizabeth A. Walker, Hillel W. Cohen, Charles E. Basch, Randi L. Wolf, Jerrold Hill and Stephen J. Lepore and has published in prestigious journals such as PLoS ONE, Diabetes Care and PEDIATRICS.

In The Last Decade

Co-authorship network of co-authors of Ralph Ullman i

Fields of papers citing papers by Ralph Ullman

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Ralph Ullman

Since Specialization
Citations

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