R. Steffen

821 total citations
38 papers, 630 citations indexed

About

R. Steffen is a scholar working on Surgery, Hepatology and Epidemiology. According to data from OpenAlex, R. Steffen has authored 38 papers receiving a total of 630 indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Surgery, 14 papers in Hepatology and 5 papers in Epidemiology. Recurrent topics in R. Steffen's work include Organ Transplantation Techniques and Outcomes (15 papers), Liver Disease and Transplantation (10 papers) and Bariatric Surgery and Outcomes (7 papers). R. Steffen is often cited by papers focused on Organ Transplantation Techniques and Outcomes (15 papers), Liver Disease and Transplantation (10 papers) and Bariatric Surgery and Outcomes (7 papers). R. Steffen collaborates with scholars based in Germany, United States and Switzerland. R. Steffen's co-authors include Fritz Horber, Hēnry Buchwald, C. Tsigos, Nick Finer, Rudolf A. Weiner, K. Widhalm, A Basdevant, Vojtěch Hainer, Martin Fried and Nicola Scopinaro and has published in prestigious journals such as Journal of Hepatology, International Journal of Obesity and Surgery.

In The Last Decade

R. Steffen

37 papers receiving 598 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
R. Steffen Germany 13 429 179 121 107 93 38 630
Louis Wilson United States 7 449 1.0× 162 0.9× 45 0.4× 78 0.7× 32 0.3× 14 775
Rudolf Steffen Switzerland 21 1.2k 2.8× 464 2.6× 305 2.5× 189 1.8× 246 2.6× 35 1.5k
Anish A. Sheth United States 8 306 0.7× 97 0.5× 47 0.4× 76 0.7× 64 0.7× 10 656
Ana Clemente Spain 15 170 0.4× 182 1.0× 154 1.3× 258 2.4× 15 0.2× 33 649
Amir Mari Israel 13 373 0.9× 85 0.5× 83 0.7× 176 1.6× 19 0.2× 126 728
Kalyani Maganti United States 7 177 0.4× 106 0.6× 174 1.4× 221 2.1× 40 0.4× 7 550
K.M. de Bruijn Netherlands 14 354 0.8× 143 0.8× 86 0.7× 60 0.6× 6 0.1× 23 540
Alireza Khalaj Iran 18 625 1.5× 354 2.0× 10 0.1× 93 0.9× 108 1.2× 94 875
Ali Kemal Kadiroğlu Türkiye 13 95 0.2× 99 0.6× 25 0.2× 61 0.6× 21 0.2× 49 480
Nicholas Evennett New Zealand 12 434 1.0× 102 0.6× 32 0.3× 26 0.2× 69 0.7× 22 593

Countries citing papers authored by R. Steffen

Since Specialization
Citations

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

Fields of papers citing papers by R. Steffen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of R. Steffen

This figure shows the co-authorship network connecting the top 25 collaborators of R. Steffen. A scholar is included among the top collaborators of R. Steffen 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. Steffen. R. Steffen 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.
Steffen, R., et al.. (2011). Die Behandlung von Kindern mit Molaren-Inzisiven-Hypomineralisation. Eine Herausforderung bei der Schmerzkontrolle und Verhaltenssteuerung. Zurich Open Repository and Archive (University of Zurich). 65(12). 1585–1592. 4 indexed citations
2.
Steinmüller, T., M. Doss, R. Steffen, et al.. (2008). Lebertransplantation bei erythrohepatischer Protoporphyrie. DMW - Deutsche Medizinische Wochenschrift. 117(28/29). 1097–1102. 1 indexed citations
3.
Fried, Martin, Vojtěch Hainer, A Basdevant, et al.. (2007). Inter-disciplinary European guidelines on surgery of severe obesity. International Journal of Obesity. 31(4). 569–577. 230 indexed citations
4.
Potoczna, Natascha, R. Steffen, & Fritz Horber. (2006). Chirurgische Verfahren bei krankhafter Adipositas. Der Internist. 47(2). 150–158. 3 indexed citations
5.
Pattyn, Piet, et al.. (2005). Bariatric surgery using the Swedish Adjustable Gastric Band (SAGB) or Lap-Band (LB): a systematic review of the literature and meta-analysis. Ghent University Academic Bibliography (Ghent University). 2 indexed citations
6.
Steffen, R., et al.. (2003). Komplikationen nach Knieprothesen-Implantation. Zentralblatt für Chirurgie - Zeitschrift für Allgemeine Viszeral- Thorax- und Gefäßchirurgie. 128(1). 74–77. 8 indexed citations
7.
8.
9.
Mahajan, Lori, et al.. (1997). The safety of gastrostomy in patients with Crohn's disease.. PubMed. 92(6). 985–8. 21 indexed citations
10.
Steffen, R., et al.. (1995). Laparoscopic Colorectal Surgery. Digestive Surgery. 12(5). 271–276. 4 indexed citations
11.
Blumhardt, G., P. Lemmens, T Topalidis, et al.. (1993). Increased flow rate of preservation solution in the hepatic artery during organ preservation can improve postischemic liver function.. PubMed. 25(4). 2540–2. 8 indexed citations
12.
Raakow, Roland, R. Steffen, M. Knoop, et al.. (1992). Quadruple immunosuppression including a new IL-2-receptor antibody and the incidence of infections after liver transplantation. PubMed. 5 Suppl 1. 168–169. 3 indexed citations
13.
Blumhardt, G., P. Neuhaus, H. Keck, et al.. (1992). Technique of arterial anastomosis in liver transplantation, surgical management in routine situations and anatomical variations. PubMed. 5 Suppl 1. 198–198. 3 indexed citations
14.
Bachmann, Sigrid, Jane C. Caldwell-Kenkel, Robert T. Currin, et al.. (1992). Protection by pentoxifylline against graft failure from storage injury after orthotopic rat liver transplantation with arterialization. PubMed. 5 Suppl 1. 345–350. 18 indexed citations
15.
Bachmann, Sigrid, Jane C. Caldwell-Kenkel, Robert T. Currin, et al.. (1992). Protection by pentoxifylline against graft failure from storage injury after orthotopic rat liver transplantation with arterialization. Transplant International. 5. S345–S350. 20 indexed citations
16.
Hopf, U., P. Neuhaus, H. Lobeck, et al.. (1991). Follow-up of recurrent hepatitis B and delta infection in liver allograft recipients after treatment with recombinant interferon-α. Journal of Hepatology. 13(3). 339–346. 37 indexed citations
17.
Knoop, M., R. Steffen, & P. Neuhaus. (1991). A technique for hepatopancreaticoduodenal cluster transplantation in the rat. Microsurgery. 12(6). 385–388. 3 indexed citations
18.
Blumhardt, G., et al.. (1991). Long term immunoprophylaxis can improve results after liver transplantation in hepatitis B. Journal of Hepatology. 13. S12–S12. 1 indexed citations
19.
Steffen, R., et al.. (1990). Comparison of University of Wisconsin (UW) and Eurocollins (EC) preservation solutions in a rat liver transplant model. Transplant International. 3(3). 133–136. 16 indexed citations
20.
Steffen, R.. (1983). Praktizierte Prophylaxe von Herz-Kreislauf-Krankheiten. Sozial- und Präventivmedizin. 28(3-4). 124–126. 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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