Ralph Ullman

823 total citations
14 papers, 660 citations indexed

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 660 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), Global Cancer Incidence and Screening (3 papers) and Colorectal Cancer Screening and Detection (3 papers). Ralph Ullman is often cited by papers focused on Healthcare Policy and Management (4 papers), Global Cancer Incidence and Screening (3 papers) and Colorectal Cancer Screening and Detection (3 papers). Ralph Ullman collaborates with scholars based in United States, Spain and Nepal. Ralph Ullman's co-authors include Celia Shmukler, Mary E. Charlson, Martin T. Wells, Elizabeth A. Walker, Hillel W. Cohen, Charles E. Basch, Randi L. Wolf, Jerrold Hill, Stephen J. Lepore and Sally Weinrich and has published in prestigious journals such as PLoS ONE, Diabetes Care and PEDIATRICS.

In The Last Decade

Ralph Ullman

14 papers receiving 621 citations

Peers

Ralph Ullman
Comparison fields: 5 of 89
  • General Health Professions 265
  • Epidemiology 154
  • Emergency Medicine 140
  • Economics and Econometrics 137
  • Endocrinology, Diabetes and Metabolism 101
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Citations per field, relative to Ralph Ullman
Ralph Ullman · 1×
Citations per year, relative to Ralph Ullman
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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).

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.

Co-authorship network of co-authors of Ralph Ullman

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

All Works

14 of 14 papers shown
# Work Indexed citations
1 15
2 21
3 9
4 16
5 11
6 200
7 45
8 128
9 31
10 23
11 3
12
Study provides data for planning hospital-based primary care.
1
13 56
14 101

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