Sarah B. Umar

1.3k total citations
33 papers, 628 citations indexed

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 33 papers receiving a total of 628 indexed citations (citations by other indexed papers that have themselves been cited), including 20 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 Eosinophilic Esophagitis (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 Eosinophilic Esophagitis (6 papers). Sarah B. Umar collaborates with scholars based in United States, Canada and Australia. Sarah B. Umar's co-authors include John K. DiBaise, David E. Fleischer, Michael D. Crowell, Brian E. Lacy, W. Leroy Griffing, Amy E. Foxx–Orenstein, Lucinda A. Harris, Marcelo F. Vela, George E. Burdick and Shiva K. Ratuapli and has published in prestigious journals such as Gastroenterology, The American Journal of Gastroenterology and Gastrointestinal Endoscopy.

In The Last Decade

Sarah B. Umar

30 papers receiving 607 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Sarah B. Umar United States 12 363 194 134 114 96 33 628
María Belén Zanchetta Argentina 13 152 0.4× 119 0.6× 46 0.3× 75 0.7× 216 2.3× 40 653
Paolo Gandullia Italy 18 553 1.5× 208 1.1× 126 0.9× 19 0.2× 51 0.5× 76 916
Ümit Akyüz Türkiye 14 253 0.7× 173 0.9× 74 0.6× 51 0.4× 33 0.3× 53 592
Mehmet Hacıyanlı Türkiye 15 608 1.7× 98 0.5× 200 1.5× 81 0.7× 156 1.6× 82 821
Alexander J. Eckardt Germany 16 577 1.6× 407 2.1× 268 2.0× 115 1.0× 224 2.3× 32 983
Masayuki Hotokezaka Japan 16 424 1.2× 94 0.5× 185 1.4× 29 0.3× 145 1.5× 61 597
Akihiro Yoneda Japan 18 319 0.9× 70 0.4× 204 1.5× 18 0.2× 56 0.6× 52 746
Mohannad Abou Saleh United States 15 326 0.9× 79 0.4× 48 0.4× 57 0.5× 108 1.1× 70 674
Auke Bogte Netherlands 17 637 1.8× 334 1.7× 214 1.6× 17 0.1× 215 2.2× 37 909
William W. Olmsted United States 14 365 1.0× 141 0.7× 141 1.1× 40 0.4× 65 0.7× 54 650

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).

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.

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

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

All Works

20 of 20 papers shown
1.
Biondi, Mia J., Sarah B. Umar, Matthew T. Hoerth, et al.. (2025). A mixed methods survey of research education requirements for residents in internal medicine, neurology and transitional programs. Medical Education Online. 30(1). 2494579–2494579.
2.
Umar, Sarah B., et al.. (2024). Clinical Characteristics and Treatment Outcomes of Alcohol Withdrawal Syndrome in Adolescents and Young Adults. PubMed. 3(2). 216–231. 1 indexed citations
3.
Umar, Sarah B. & Amy S. Oxentenko. (2021). Training the Trainers: Setting Standards for Faculty in Gastroenterology. Clinical Gastroenterology and Hepatology. 19(5). 861–864. 2 indexed citations
4.
Griffing, W. Leroy, et al.. (2021). Progression of gastrointestinal symptoms over time in patients with systemic sclerosis. Rheumatology International. 41(7). 1281–1287. 6 indexed citations
5.
Horsley‐Silva, Jennifer L., Diana L. Snyder, Noemi Baffy, et al.. (2020). Effect of bowel preparation volume in inpatient colonoscopy. Results of a prospective, randomized, comparative pilot study. BMC Gastroenterology. 20(1). 227–227. 11 indexed citations
6.
Aihara, Hiroyuki, Gobind Anand, Prabhleen Chahal, et al.. (2020). Core curriculum for EUS. Gastrointestinal Endoscopy. 92(3). 469–473. 10 indexed citations
7.
Qayed, Emad, Gobind Anand, Hiroyuki Aihara, et al.. (2020). Core curriculum for endoluminal stent placement. Gastrointestinal Endoscopy. 92(3). 463–468. 2 indexed citations
8.
Nokes, Brandon, Rodrigo Cartin‐Ceba, Lois E. Krahn, et al.. (2019). Individuals With Scleroderma May Have Increased Risk of Sleep-Disordered Breathing. Journal of Clinical Sleep Medicine. 15(11). 1665–1669. 13 indexed citations
9.
Horsley‐Silva, Jennifer L., Sarah B. Umar, Marcelo F. Vela, et al.. (2019). The impact of gastroesophageal reflux disease symptoms in scleroderma: effects on sleep quality. Diseases of the Esophagus. 32(5). 15 indexed citations
10.
Gurudu, Suryakanth, Michael D. Crowell, Mary A. Atia, et al.. (2017). Impact of feedback on adenoma detection rates: Outcomes of quality improvement program. Journal of Gastroenterology and Hepatology. 33(3). 645–649. 23 indexed citations
11.
Harris, Lucinda A., Sarah B. Umar, Noemi Baffy, & Margaret Heitkemper. (2016). Irritable Bowel Syndrome and Female Patients. Gastroenterology Clinics of North America. 45(2). 179–204. 8 indexed citations
12.
Kahn, Allon, et al.. (2015). Deglutition Syncope: A Case Report and Review of the Literature. ACG Case Reports Journal. 3(1). 20–22. 8 indexed citations
13.
Crowell, Michael D., Sarah B. Umar, Brian E. Lacy, et al.. (2015). Multi-Dimensional Gastrointestinal Symptom Severity Index: Validation of a Brief GI Symptom Assessment Tool. Digestive Diseases and Sciences. 60(8). 2270–2279. 22 indexed citations
14.
Ratuapli, Shiva K., Stephanie L. Hansel, Sarah B. Umar, et al.. (2014). Esophageal Peristaltic Defects in Adults with Functional Dysphagia. Dysphagia. 29(4). 519–526. 4 indexed citations
15.
Ratuapli, Shiva K., Suryakanth Gurudu, Mary A. Atia, et al.. (2014). Postcolonoscopy Followup Recommendations: Comparison with and without Use of Polyp Pathology. Diagnostic and therapeutic endoscopy. 2014. 1–7. 1 indexed citations
16.
Umar, Sarah B., et al.. (2012). Balloon-assisted enteroscopy for the treatment of a sealed jejunal perforation: removal of a penetrating fish bone (with video). Gastrointestinal Endoscopy. 77(1). 133–135. 1 indexed citations
17.
Ratuapli, Shiva K., Sarah B. Umar, Lucinda A. Harris, et al.. (2012). Proton Pump Inhibitor Therapy Use Does Not Predispose to Small Intestinal Bacterial Overgrowth. The American Journal of Gastroenterology. 107(5). 730–735. 76 indexed citations
18.
Hansel, Stephanie L., Sarah B. Umar, Tisha Lunsford, et al.. (2009). Personality Traits and Impaired Health-Related Quality of Life in Patients With Functional Gastrointestinal Disorders. Clinical Gastroenterology and Hepatology. 8(2). 220–222. 14 indexed citations
19.
Umar, Sarah B. & John K. DiBaise. (2009). Protein-Losing Enteropathy: Case Illustrations and Clinical Review. The American Journal of Gastroenterology. 105(1). 43–49. 112 indexed citations
20.
Umar, Sarah B., J. Efron, & Russell I. Heigh. (2008). An Interesting Case of Mistaken Identity. Case Reports in Gastroenterology. 2(3). 308–313. 1 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.

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