Halis Şimşek

868 total citations
20 papers, 644 citations indexed

About

Halis Şimşek is a scholar working on Epidemiology, Surgery and Hepatology. According to data from OpenAlex, Halis Şimşek has authored 20 papers receiving a total of 644 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Epidemiology, 7 papers in Surgery and 7 papers in Hepatology. Recurrent topics in Halis Şimşek's work include Liver Disease Diagnosis and Treatment (8 papers), Hepatitis B Virus Studies (8 papers) and Hepatitis C virus research (7 papers). Halis Şimşek is often cited by papers focused on Liver Disease Diagnosis and Treatment (8 papers), Hepatitis B Virus Studies (8 papers) and Hepatitis C virus research (7 papers). Halis Şimşek collaborates with scholars based in Türkiye, United States and Netherlands. Halis Şimşek's co-authors include Gonca Tatar, Yasemin Balaban, Gülşen Hasçelik, Rengin Elsürer, Cenk Sökmensüer, Hoel Sette, Osman Özcebe, Yahya Büyükaşık, Gökhan Gedikoğlu and Harry L.A. Janssen and has published in prestigious journals such as Hepatology, Journal of Hepatology and The American Journal of Gastroenterology.

In The Last Decade

Halis Şimşek

19 papers receiving 616 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Halis Şimşek Türkiye 12 448 303 173 112 83 20 644
Gonca Tatar Türkiye 12 251 0.6× 88 0.3× 274 1.6× 113 1.0× 96 1.2× 33 545
Ki Jun Han South Korea 11 419 0.9× 333 1.1× 132 0.8× 45 0.4× 20 0.2× 26 638
Idriss Djilali-Saiah Canada 18 603 1.3× 447 1.5× 369 2.1× 272 2.4× 198 2.4× 27 1.2k
Fatih Oğuz Önder Türkiye 14 442 1.0× 412 1.4× 69 0.4× 31 0.3× 8 0.1× 39 620
Yuko Arima Japan 12 227 0.5× 175 0.6× 123 0.7× 48 0.4× 6 0.1× 14 546
A Dasgupta United States 11 168 0.4× 78 0.3× 99 0.6× 76 0.7× 8 0.1× 16 482
José‐María Sánchez‐Tapias Spain 13 396 0.9× 406 1.3× 44 0.3× 10 0.1× 13 0.2× 16 641
Francesca Saffioti United Kingdom 14 518 1.2× 497 1.6× 203 1.2× 21 0.2× 9 0.1× 43 771
B.M. McFarlane United Kingdom 9 355 0.8× 464 1.5× 45 0.3× 26 0.2× 18 0.2× 13 582
Katsumoto Kato Japan 12 92 0.2× 109 0.4× 138 0.8× 20 0.2× 22 0.3× 30 345

Countries citing papers authored by Halis Şimşek

Since Specialization
Citations

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

Fields of papers citing papers by Halis Şimşek

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Halis Şimşek

This figure shows the co-authorship network connecting the top 25 collaborators of Halis Şimşek. A scholar is included among the top collaborators of Halis Şimşek 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 Halis Şimşek. Halis Şimşek 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.
Balaban, Yasemin, et al.. (2025). Commercial real-time PCR kit results for the detection of Helicobacter pylori and clarithromycin resistance in stool samples. Indian Journal of Medical Microbiology. 57. 100920–100920.
2.
Aslan, Abdullah Tarık & Halis Şimşek. (2021). Clinical Features and Pathophysiological Mechanisms of COVID-19-associated Gastrointestinal Manifestations. Euroasian Journal of Hepato-Gastroenterology. 11(2). 81–86. 1 indexed citations
3.
Balaban, Hatice, Osman Dağ, Alpaslan Alp, et al.. (2020). Retrospective Evaluation of Hepatitis C Awareness in Turkey Through Two Decades. The Turkish Journal of Gastroenterology. 32(1). 88–96. 3 indexed citations
4.
Ergünay, Koray, Yasemin Balaban, Erdal Coşgun, et al.. (2012). Epidemiologic trends in HBV infections at a reference centre in Turkey: an 11-year retrospective analysis. Annals of Hepatology. 11(5). 672–678. 20 indexed citations
5.
Şimşek, Halis, Aslı Pinar, Akif Altınbaş, et al.. (2011). Cutoff level to detect heterozygous alpha 1 antitrypsin deficiency in Turkish population. Journal of Clinical Laboratory Analysis. 25(4). 296–299. 5 indexed citations
6.
Buster, Erik H.C.J., Hajo J. Flink, Halis Şimşek, et al.. (2009). Early HBeAg Loss During Peginterferon α-2b Therapy Predicts HBsAg Loss: Results of a Long-Term Follow-Up Study in Chronic Hepatitis B Patients. The American Journal of Gastroenterology. 104(10). 2449–2457. 22 indexed citations
7.
Balaban, Yasemin, et al.. (2009). Tumor markers in familial Mediterranean fever and their correlation with the frequency of attacks.. PubMed. 26(4 Suppl 50). S114–6. 2 indexed citations
8.
Sherman, Morris, Cihan Yurdaydın, Halis Şimşek, et al.. (2008). Entecavir therapy for lamivudine‐refractory chronic hepatitis B. Hepatology. 48(1). 99–108. 133 indexed citations
9.
Schiff, Eugene R., Halis Şimşek, William M. Lee, et al.. (2008). Efficacy and Safety of Entecavir in Patients With Chronic Hepatitis B and Advanced Hepatic Fibrosis or Cirrhosis. The American Journal of Gastroenterology. 103(11). 2776–2783. 92 indexed citations
10.
Balaban, Yasemin, Petek Korkusuz, Halis Şimşek, et al.. (2007). Dipeptidyl peptidase IV (DDP IV) in NASH patients. Annals of Hepatology. 6(4). 242–250. 114 indexed citations
11.
Şimşek, Halis, et al.. (2007). [518] EFFICACY OF ENTECAVIR AND LAMIVUDINE IN CHRONIC HEPATITIS B PATIENTS WITH ADVANCED FIBROSIS/CIRRHOSIS. Journal of Hepatology. 46. S197–S197. 3 indexed citations
12.
Flink, Hajo J., Bettina E. Hansen, E. Jenny Heathcote, et al.. (2006). Successful Treatment with Peginterferon alfa-2b of HBeAg-positive HBV Non-Responders to Standard Interferon or Lamivudine. The American Journal of Gastroenterology. 101(11). 2523–2529. 21 indexed citations
13.
Şimşek, Halis, Yasemin Balaban, Engin Yılmaz, et al.. (2005). Mutations of the HFE gene among Turkish hereditary hemochromatosis patients. Annals of Hematology. 84(10). 646–649. 7 indexed citations
14.
Gürlek, Alper, et al.. (2005). Coincidence or Causality: Celiac and Crohn Diseases in a Case of Turner Syndrome. The American Journal of the Medical Sciences. 329(4). 214–216. 11 indexed citations
15.
Elsürer, Rengin, Gonca Tatar, Halis Şimşek, et al.. (2005). Celiac Disease in the Turkish Population. Digestive Diseases and Sciences. 50(1). 136–142. 19 indexed citations
16.
Şimşek, Halis, Engin Yılmaz, Yasemin Balaban, et al.. (2004). Frequency of HFE Mutations Among Turkish Blood Donors According to Transferrin Saturation. Journal of Clinical Gastroenterology. 38(8). 671–675. 17 indexed citations
17.
Şimşek, Halis, Rengin Elsürer, Cenk Sökmensüer, Yasemin Balaban, & Gonca Tatar. (2004). Ameboma mimicking carcinoma of the cecum: case report. Gastrointestinal Endoscopy. 59(3). 453–454. 20 indexed citations
18.
Tatar, Gonca, Rengin Elsürer, Halis Şimşek, et al.. (2004). Screening of Tissue Transglutaminase Antibody in Healthy Blood Donors for Celiac Disease Screening in the Turkish Population. Digestive Diseases and Sciences. 49(9). 1479–1484. 91 indexed citations
19.
Şimşek, Halis, Ersan Özaslan, İskender Sayek, et al.. (2003). Diagnostic and Therapeutic ERCP in Hepatic Hydatid Disease. Gastrointestinal Endoscopy. 58(3). 384–389. 33 indexed citations
20.
Şimşek, Halis, Semra Dündar, & H Telatar. (1991). Treatment of Behçet Disease with Indomethacin. International Journal of Dermatology. 30(1). 54–57. 30 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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