Holger G. Hass

858 total citations
40 papers, 644 citations indexed

About

Holger G. Hass is a scholar working on Oncology, Surgery and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Holger G. Hass has authored 40 papers receiving a total of 644 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Oncology, 12 papers in Surgery and 12 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Holger G. Hass's work include Hepatitis C virus research (8 papers), Colorectal Cancer Treatments and Studies (7 papers) and Genetic factors in colorectal cancer (6 papers). Holger G. Hass is often cited by papers focused on Hepatitis C virus research (8 papers), Colorectal Cancer Treatments and Studies (7 papers) and Genetic factors in colorectal cancer (6 papers). Holger G. Hass collaborates with scholars based in Germany, Estonia and United States. Holger G. Hass's co-authors include Oliver Nehls, Michael Gregor, Stephan Kaiser, Michael Scheurlen, Bodo Klump, Rainer Porschen, Volker Heinemann, Ludwig Fischer von Weikersthal, Martina Stauch and Jürgen Jobst and has published in prestigious journals such as Journal of Clinical Oncology, Gastroenterology and Journal of Hepatology.

In The Last Decade

Holger G. Hass

37 papers receiving 629 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Holger G. Hass Germany	13	384	208	162	134	132	40	644
K C Lakshmaiah India	11	315 0.8×	186 0.9×	73 0.5×	92 0.7×	85 0.6×	28	544
Amitesh Roy Australia	14	606 1.6×	226 1.1×	206 1.3×	206 1.5×	72 0.5×	86	859
Kia Homayounfar Germany	17	466 1.2×	154 0.7×	304 1.9×	103 0.8×	105 0.8×	43	687
Marcus Smith Noel United States	13	521 1.4×	135 0.6×	127 0.8×	44 0.3×	73 0.6×	68	803
Katia Dotti Italy	12	364 0.9×	149 0.7×	99 0.6×	114 0.9×	58 0.4×	28	514
Laurence P. Diggs United States	14	391 1.0×	173 0.8×	192 1.2×	42 0.3×	99 0.8×	37	823
Elisa Fontana United Kingdom	12	547 1.4×	251 1.2×	142 0.9×	129 1.0×	20 0.2×	77	821
Capucine Baldini France	16	686 1.8×	280 1.3×	140 0.9×	54 0.4×	37 0.3×	89	964
J.J. Grau Spain	9	312 0.8×	216 1.0×	152 0.9×	57 0.4×	29 0.2×	14	543
Alice Boilève France	16	409 1.1×	192 0.9×	283 1.7×	64 0.5×	41 0.3×	68	756

Countries citing papers authored by Holger G. Hass

Since Specialization

Citations

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

Fields of papers citing papers by Holger G. Hass

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Holger G. Hass. 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 Holger G. Hass. The network helps show where Holger G. Hass may publish in the future.

Co-authorship network of co-authors of Holger G. Hass

This figure shows the co-authorship network connecting the top 25 collaborators of Holger G. Hass. A scholar is included among the top collaborators of Holger G. Hass 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 Holger G. Hass. Holger G. Hass 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

Hass, Holger G., et al.. (2022). Psychological distress in breast cancer patients during oncological inpatient rehabilitation: incidence, triggering factors and correlation with treatment-induced side effects. Archives of Gynecology and Obstetrics. 307(3). 919–925. 9 indexed citations

Faller, Hermann, Dirk G. Engehausen, Holger G. Hass, et al.. (2021). Patients’ challenges, competencies, and perceived support in dealing with information needs – A qualitative analysis in patients with breast and gynecological cancer. Patient Education and Counseling. 105(7). 2382–2390. 9 indexed citations

Hass, Holger G., Ulrich Vogel, Michael Scheurlen, & Jürgen Jobst. (2018). Use of Gene Expression Analysis for Discrimination of Primary and Secondary Adenocarcinoma of the Liver. Oncology. 95(4). 211–219. 5 indexed citations

Rick, Oliver, Monika Reuß‐Borst, Holger G. Hass, et al.. (2017). NeuroCog-FX study: A multicenter cohort study on cognitive dysfunction in patients with early breast cancer.. Journal of Clinical Oncology. 35(15_suppl). 10061–10061. 2 indexed citations

Hass, Holger G., et al.. (2017). Diagnostic and Prognostic Aspects of Hepatocellular Carcinoma – A RetrospectiveAnalysis in 145 Patients. Journal of Gastroenterology and Hepatology Research. 6(3). 2358–2364. 3 indexed citations

Hass, Holger G., Ulrich Vogel, Michael Scheurlen, & Jürgen Jobst. (2016). Gene-expression Analysis Identifies Specific Patterns of Dysregulated Molecular Pathways and Genetic Subgroups of Human Hepatocellular Carcinoma. Anticancer Research. 36(10). 5087–5096. 30 indexed citations

Hass, Holger G., Jürgen Jobst, Ulrich Vogel, Michael Scheurlen, & Oliver Nehls. (2014). Overexpression of Tumor-Associated Trypsin Inhibitor (SPINK1/TATI) in Hepatitis C-Associated Hepatocellular Carcinoma: Potential Implications for Viral Hepatocarcinogenesis. Oncology Research and Treatment. 37(12). 732–738. 11 indexed citations

Einem, Jobst C. von, Volker Heinemann, Ludwig Fischer von Weikersthal, et al.. (2014). Left-sided primary tumors are associated with favorable prognosis in patients with KRAS codon 12/13 wild-type metastatic colorectal cancer treated with cetuximab plus chemotherapy: an analysis of the AIO KRK-0104 trial. Journal of Cancer Research and Clinical Oncology. 140(9). 1607–1614. 89 indexed citations

Stintzing, Sebastian, Ludwig Fischer von Weikersthal, Ursula Vehling‐Kaiser, et al.. (2011). Correlation of capecitabine-induced skin toxicity with treatment efficacy in patients with metastatic colorectal cancer: results from the German AIO KRK-0104 trial. British Journal of Cancer. 105(2). 206–211. 22 indexed citations

10.

Hass, Holger G., et al.. (2011). Signet Ring Cell Carcinoma of the Stomach Is Significantly Associated with Poor Prognosis and Diffuse Gastric Cancer (Lauren’s): Single-Center Experience of 160 Cases. Onkologie. 34(12). 682–686. 49 indexed citations

11.

Hass, Holger G. & Claudio Denzlinger. (2009). Long-Term Treatment of Advanced Hepatocellular Carcinoma with the Tyrosine Kinase Inhibitor Erlotinib (Tarceva®) – A Case Report. Zeitschrift für Gastroenterologie. 47(1). 27–29. 3 indexed citations

12.

Hass, Holger G., C.–Thomas Bock, Oliver Nehls, & Stephan Kaiser. (2009). Rapid HBV DNA decrease (week 12) is an important prognostic factor for first-line treatment with adefovir dipivoxil for chronic hepatitis B. Journal of Gastroenterology. 44(8). 871–877. 9 indexed citations

13.

Nehls, Oliver, Holger G. Hass, Chih‐Jen Hsieh, et al.. (2009). Prognostic implications of BAX protein expression and microsatellite instability in all non-metastatic stages of primary colon cancer treated by surgery alone. International Journal of Colorectal Disease. 24(6). 655–663. 14 indexed citations

14.

Hass, Holger G., et al.. (2009). Thyroid Disorders and Occurrence of Nonorgan-specific Autoantibodies (NOSA) in Patients With Chronic Hepatitis C Before and During Antiviral Induction Therapy With Consensus Interferon (Interferon Alfacon-1). Journal of Clinical Gastroenterology. 43(5). 470–476. 6 indexed citations

15.

Nehls, Oliver, Mario Sarbia, F Borchard, et al.. (2007). Studies on p53, BAX and Bcl-2 protein expression and microsatellite instability in stage III (UICC) colon cancer treated by adjuvant chemotherapy: major prognostic impact of proapoptotic BAX. British Journal of Cancer. 96(9). 1409–1418. 60 indexed citations

16.

Kaiser, S, et al.. (2006). 584 Long-term low dose treatment with pegylated interferon α-2b leads to a significant reduction in fibrosis in chronic hepatitis C nonresponder patients. Journal of Hepatology. 44. S217–S217. 1 indexed citations

17.

Nehls, Oliver, Helmut Oettle, J.T. Hartmann, et al.. (2006). A prospective multicenter phase II trial of capecitabine plus oxaliplatin (CapOx) in advanced biliary system adenocarcinomas: The final results. Journal of Clinical Oncology. 24(18_suppl). 4136–4136. 4 indexed citations

18.

Nehls, Oliver, Holger G. Hass, Martin Weber, et al.. (2006). Sarcoidosis mimicking cholangiocarcinoma. Endoscopy. 38(S 2). E65–E66. 1 indexed citations

19.

Hass, Holger G., et al.. (2005). Detektion und Therapieverlaufskontrolle der subklinischen und manifesten hepatischen Enzephalopathie nach Behandlung mittels L-Ornithin-L-Aspartat durch Protonen-Magnetresonanzspektroskopie (¹H-MRS). Zeitschrift für Gastroenterologie. 43(4). 373–378. 7 indexed citations

20.

Kaiser, Stephan, et al.. (2002). High dose induction therapy with consensus interferon and ribavirin for treatment-naive patients with hepatitis C. Journal of Hepatology. 36. 113–114. 3 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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