R Porschen

549 total citations
20 papers, 336 citations indexed

About

R Porschen is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, R Porschen has authored 20 papers receiving a total of 336 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Surgery, 6 papers in Pulmonary and Respiratory Medicine and 5 papers in Oncology. Recurrent topics in R Porschen's work include Colorectal Cancer Treatments and Studies (4 papers), Parasitic Infections and Diagnostics (3 papers) and Cancer Treatment and Pharmacology (3 papers). R Porschen is often cited by papers focused on Colorectal Cancer Treatments and Studies (4 papers), Parasitic Infections and Diagnostics (3 papers) and Cancer Treatment and Pharmacology (3 papers). R Porschen collaborates with scholars based in Germany, United States and France. R Porschen's co-authors include O. G. W. Berlin, Daniel J. Sargent, Leonard B. Saltz, Philippe Rougier, Michel Seymour, Hanna K. Sanoff, C. Tournigand, Jean‐Yves Douillard, Claus Henning Köhne and Aimery de Gramont and has published in prestigious journals such as New England Journal of Medicine, Journal of Clinical Oncology and Clinical Infectious Diseases.

In The Last Decade

R Porschen

18 papers receiving 320 citations

Peers

R Porschen

ONCOL

PARAS

PRM

SURGE

PFM

Omar Javed Shah India

Mohit Nanda India

H Kreis France

Michel Goldman Belgium

Enrique Pérez‐Cuadrado‐Robles France

Ajaz Ahmad Malik India

A. Kadir Dökmeci Türkiye

Emily T. Nguyen United States

D Jaubert France

L.C.C. Gayotto Brazil

Omar Javed Shah India

R Porschen

106 ×0.7

ONCOL

68 ×0.7

PARAS

211 ×2.3

PRM

360 ×4.6

SURGE

109 ×2.4

PFM

Citations per year, relative to R Porschen R Porschen (= 1×) peers Omar Javed Shah

Countries citing papers authored by R Porschen

Since Specialization

Citations

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

Fields of papers citing papers by R Porschen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of R Porschen

This figure shows the co-authorship network connecting the top 25 collaborators of R Porschen. A scholar is included among the top collaborators of R Porschen 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 R Porschen. R Porschen 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

Schwarze, Bernd, et al.. (2009). A Rare Cause of Ulcerative Colitis – Diarrhoea and Perianal Bleeding Due to Posttransplant Lymphoproliferative Disorder (PTLD). Zeitschrift für Gastroenterologie. 47(3). 283–287. 9 indexed citations

Sargent, Daniel J., Claus Henning Köhne, Hanna K. Sanoff, et al.. (2009). Pooled Safety and Efficacy Analysis Examining the Effect of Performance Status on Outcomes in Nine First-Line Treatment Trials Using Individual Data From Patients With Metastatic Colorectal Cancer. Journal of Clinical Oncology. 27(12). 1948–1955. 135 indexed citations

Porschen, R, et al.. (2008). Zur Differentialdiagnose zystischer intraabdomineller Läsionen: Mukozele der Appendix. Ultraschall in der Medizin - European Journal of Ultrasound. 6(6). 333–335.

Porschen, R, Hendrik‐Tobias Arkenau, Dirk Arnold, et al.. (2008). Capecitabine and oxaliplatin as first-line treatment in patients with metastatic colorectal cancer (MCRC): A pooled analysis of randomized phase II-III trials. Journal of Clinical Oncology. 26(15_suppl). 4055–4055. 2 indexed citations

Kaltz, Birgit, Bernd Bokemeyer, Jörg Hoffmann, et al.. (2007). Überwachungskoloskopie bei Colitis ulcerosain Deutschland. Zeitschrift für Gastroenterologie. 45(4). 325–331. 22 indexed citations

Goldberg, Richard M., C.-H. Köhne, Michel Seymour, et al.. (2007). A pooled safety and efficacy analysis examining the effect of performance status (PS) on outcomes in nine first-line treatment (rx) trials (cts) of 6,286 patients (pts) with metastatic colorectal cancer (MCRC). Journal of Clinical Oncology. 25(18_suppl). 4011–4011. 7 indexed citations

Stolte, M., et al.. (2005). Fallbericht zur Differenzialdiagnose der gastroösophagealen Refluxkrankheit: die eosinophile Ösophagitis. Zeitschrift für Gastroenterologie. 43(4). 385–389. 1 indexed citations

Messmann, Helmut, Christian Ell, Michael Fein, et al.. (2005). Themenkomplex VI: Barrett-Ösophagus. Zeitschrift für Gastroenterologie. 43(2). 184–190. 5 indexed citations

Kruse, Felix, et al.. (2003). Zur Differenzialdiagnose des Morbus Crohn: Invagination des Kolons. Zeitschrift für Gastroenterologie. 41(7). 663–666.

10.

Nehls, Oliver, R Porschen, Michael Gregor, & Bodo Klump. (2001). Stellenwert von Oxaliplatin in der Therapie des fortgeschrittenen kolorektalen Karzinoms. Zeitschrift für Gastroenterologie. 39(12). 1033–1047. 2 indexed citations

11.

Schmiegel, Wolff, Gerald Adler, P. Frühmorgen, et al.. (2000). Kolorektales Karzinom : Prävention und Früherkennung in der asymptomatischen Bevölkerung : Vorsorge bei Risikopatienten : Endoskopische Diagnostik, Therapie und Nachsorge von Polypen und Karzinomen. Zeitschrift für Gastroenterologie. 38(1). 49–75. 18 indexed citations

12.

Conteas, Chris N., et al.. (1998). Examination of the prevalence and seasonal variation of intestinal microsporidiosis in the stools of persons with chronic diarrhea and human immunodeficiency virus infection.. American Journal of Tropical Medicine and Hygiene. 58(5). 559–561. 38 indexed citations

13.

Klump, Bodo, et al.. (1997). [Argon plasma coagulation in endoscopic therapy of CREST syndrome associated upper gastrointestinal hemorrhage].. PubMed. 35(6). 469–76. 10 indexed citations

14.

Conteas, Chris N., et al.. (1996). Fluorescence techniques for diagnosing intestinal microsporidiosis in stool, enteric fluid, and biopsy specimens from acquired immunodeficiency syndrome patients with chronic diarrhea.. PubMed. 120(9). 847–53. 26 indexed citations

15.

Berlin, O. G. W., et al.. (1994). Recovery of Cyclospora Organisms from Patients with Prolonged Diarrhea. Clinical Infectious Diseases. 18(4). 606–609. 43 indexed citations

16.

Szabò, Z, et al.. (1988). [An experimental study of liver perfusion using non-diffusible radiotracers: differentiation of the arterial and portal venous components by deconvolution analysis of first-pass time-activity curves].. PubMed. 27(5). 209–18. 1 indexed citations

17.

Borchard, F, et al.. (1988). [Nuclear size and differentiation status in normal tissue, preneoplastic lesions, and malignant tumors. Karyometric comparisons with regard to collecting and processing tissue].. PubMed. 72. 333–7. 1 indexed citations

18.

Porschen, R, et al.. (1986). [Hemorrhagic colitis as a sequela of a soap enema--case report].. PubMed. 24(6). 302–7. 1 indexed citations

19.

Porschen, R, et al.. (1981). Actinomycosis of the common bile duct presenting as chronic cholecystitis.. PubMed. 90(1). 117–9. 13 indexed citations

20.

Porschen, R. (1976). Respiratory Therapists. New England Journal of Medicine. 294(7). 399–399. 2 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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