Sarah B. Umar

30 papers and 570 indexed citations i.

About

Sarah B. Umar is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Gastroenterology. According to data from OpenAlex, Sarah B. Umar has authored 30 papers receiving a total of 570 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Surgery, 13 papers in Pulmonary and Respiratory Medicine and 9 papers in Gastroenterology. Recurrent topics in Sarah B. Umar’s work include Gastric Cancer Management and Outcomes (11 papers), Systemic Sclerosis and Related Diseases (7 papers) and Esophageal and GI Pathology (6 papers). Sarah B. Umar is often cited by papers focused on Gastric Cancer Management and Outcomes (11 papers), Systemic Sclerosis and Related Diseases (7 papers) and Esophageal and GI Pathology (6 papers). Sarah B. Umar collaborates with scholars based in United States, Canada and Australia. Sarah B. Umar's co-authors include David E. Fleischer, John K. DiBaise, Michael D. Crowell, Brian E. Lacy, W. Leroy Griffing, Amy E. Foxx–Orenstein, Marcelo F. Vela, Lucinda A. Harris, Shiva K. Ratuapli and George E. Burdick and has published in prestigious journals such as Gastroenterology, The American Journal of Gastroenterology and Gastrointestinal Endoscopy.

In The Last Decade

Co-authorship network of co-authors of Sarah B. Umar i

Fields of papers citing papers by Sarah B. Umar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Sarah B. Umar. 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 Sarah B. Umar. The network helps show where Sarah B. Umar may publish in the future.

Countries citing papers authored by Sarah B. Umar

Since Specialization
Citations

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