Fernando Sierra

541 total citations
25 papers, 363 citations indexed

About

Fernando Sierra is a scholar working on Surgery, Epidemiology and Infectious Diseases. According to data from OpenAlex, Fernando Sierra has authored 25 papers receiving a total of 363 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Surgery, 5 papers in Epidemiology and 4 papers in Infectious Diseases. Recurrent topics in Fernando Sierra's work include Helicobacter pylori-related gastroenterology studies (4 papers), Gastroesophageal reflux and treatments (2 papers) and Antifungal resistance and susceptibility (2 papers). Fernando Sierra is often cited by papers focused on Helicobacter pylori-related gastroenterology studies (4 papers), Gastroesophageal reflux and treatments (2 papers) and Antifungal resistance and susceptibility (2 papers). Fernando Sierra collaborates with scholars based in Colombia, Spain and United States. Fernando Sierra's co-authors include Maria Lourdes Gonzalez Suarez, Marcelo F. Vela, Juan Carlos Restrepo, Gonzalo Correa, Andrés Cárdenas, Mary Ann Robledo, Ángela Restrepo, Luis A. Salazar, Gerardo Duarte and María Luisa Botero and has published in prestigious journals such as SHILAP Revista de lepidopterología, Gastroenterology and PLoS ONE.

In The Last Decade

Fernando Sierra

21 papers receiving 339 citations

Peers

Fernando Sierra

EPIDE

SURGE

PRM

GASTR

PHARM

Woon Tae Jung South Korea

Chang Yoon Ha South Korea

C K Nain India

Hyun Ju Min South Korea

Saqib Walayat United States

Martin Scobey United States

Jai Hoon Yoon South Korea

William Knebel United States

A. Jonas Israel

Matteo Guarino Italy

Woon Tae Jung South Korea

Fernando Sierra

129 ×1.0

EPIDE

155 ×1.8

SURGE

87 ×1.0

PRM

27 ×0.3

GASTR

148 ×1.9

PHARM

Citations per year, relative to Fernando Sierra Fernando Sierra (= 1×) peers Woon Tae Jung

Countries citing papers authored by Fernando Sierra

Since Specialization

Citations

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

Fields of papers citing papers by Fernando Sierra

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Fernando Sierra

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

All Works

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20 of 20 papers shown

Sierra, Fernando, et al.. (2025). Rheumatological diseases in patients with autoimmune hepatitis in a fourth level hospital in Bogotá between 2013 and 2023. Reumatología Clínica (English Edition). 21(2). 501812–501812. 1 indexed citations

Sierra, Fernando, et al.. (2023). Clinical Outcomes of Medical Management Options for Chronic Anal Fissures in a Long-Term Follow-up: Systematic Review and Meta-Analysis. Digestive Diseases. 41(5). 822–832. 6 indexed citations

Sierra, Fernando, et al.. (2021). Peripancreatic lymph node tuberculosis diagnosed by endoscopic ultrasound. JGH Open. 5(3). 401–403. 2 indexed citations

Sierra, Fernando, et al.. (2021). Acute surgical‐like abdomen as a gastrointestinal manifestation of COVID-19 infection: a case report in Colombia. BMC Gastroenterology. 21(1). 187–187. 1 indexed citations

Sierra, Fernando. (2020). Helicobacter pylori - Estado actual. SHILAP Revista de lepidopterología.

Duarte, Gerardo, et al.. (2020). Prevalence and short-term outcome of hepatorenal syndrome: A 9-year experience in a high-complexity hospital in Colombia. PLoS ONE. 15(10). e0239834–e0239834. 6 indexed citations

López, Rocío, et al.. (2020). Whipple disease diagnosed by enteroscopy: first case report in Colombia of an underdiagnosed disease and literature review. BMC Gastroenterology. 20(1). 197–197. 2 indexed citations

Reyes, Gabriel, et al.. (2019). Enteroscopia de doble balón: experiencia de una técnica endoscópica innovadora en el Hospital Universitario de la Fundación Santa Fe de Bogotá. Revista de Gastroenterología de México. 85(1). 25–31.

Rodríguez‐Urrego, Paula A., et al.. (2018). Esophageal Pyogenic Granuloma: A Case Report and Review of the Literature. International Journal of Surgical Pathology. 26(8). 735–738. 2 indexed citations

10.

Sierra, Fernando, et al.. (2014). Ideal treatment for Helicobacter pylori: A systematic review. SHILAP Revista de lepidopterología. 79(1). 28–49. 5 indexed citations

11.

Álvarez-Fernández, Rubén & Fernando Sierra. (2011). Paisajes glaciares del macizo de Peñalara. 3(27). 16–19. 1 indexed citations

12.

Sierra, Fernando, et al.. (2007). Nodular Transformation of the Liver. Revista Colombiana de Gastroenterología. 22(1). 63–67.

13.

Sierra, Fernando & Andrés Cárdenas. (2007). Evidence-Based Medicine (EBM) in Practice: Agreement Between Observers Rating Esophageal Varices: How to Cope With Chance?. The American Journal of Gastroenterology. 102(11). 2363–2366. 11 indexed citations

14.

Sierra, Fernando, et al.. (2007). Systematic review: proton pump inhibitor‐associated acute interstitial nephritis. Alimentary Pharmacology & Therapeutics. 26(4). 545–553. 122 indexed citations

15.

Restrepo, Juan Carlos, et al.. (2006). Acute Hepatitis Due to Shen-Min. Journal of Clinical Gastroenterology. 40(7). 629–632. 63 indexed citations

16.

Sierra, Fernando, et al.. (2005). An unusual cause of acute abdomen. The American Journal of Medicine. 118(12). 1354–1356.

17.

Sierra, Fernando, Diana Torres, & Andrés Cárdenas. (2005). The role of likelihood ratio in clinical diagnosis: Applicability in the setting of spontaneous bacterial peritonitis. Clinical Gastroenterology and Hepatology. 3(1). 85–89. 2 indexed citations

18.

Olazaran, Mikel, et al.. (1995). Los sistemas de ciencia y tecnología de la Comunidad Autónoma Vasca y Navarra: una visión desde los recursos económicos dedicados a proyectos de investigación.. 1 indexed citations

19.

Sierra, Fernando, et al.. (1995). Helicobacter pylori reinfection rate after successful eradication: The aquiles heel?. Gastroenterology. 108(4). A219–A219. 1 indexed citations

20.

Robledo, Mary Ann, et al.. (1976). Pathogenesis of Paracoccidioidomycosis: A model based on the study of 46 patients. Mycopathologia. 58(2). 63–70. 64 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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