Klaus Kramer

1.4k total citations
31 papers, 1.0k citations indexed

About

Klaus Kramer is a scholar working on Surgery, Gastroenterology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Klaus Kramer has authored 31 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Surgery, 11 papers in Gastroenterology and 10 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Klaus Kramer's work include Bariatric Surgery and Outcomes (10 papers), Gastrointestinal Tumor Research and Treatment (8 papers) and Diet and metabolism studies (7 papers). Klaus Kramer is often cited by papers focused on Bariatric Surgery and Outcomes (10 papers), Gastrointestinal Tumor Research and Treatment (8 papers) and Diet and metabolism studies (7 papers). Klaus Kramer collaborates with scholars based in Germany, Austria and Netherlands. Klaus Kramer's co-authors include Alfred Königsrainer, Antje Damms-Machado, Stephan C. Bischoff, Tobias Meile, Markus A. Küper, Uwe Knippschild, Asja E. Schollenberger, Daniel H. Huson, Suparna Mitra and Frank A. Granderath and has published in prestigious journals such as PLoS ONE, World Journal of Gastroenterology and BioMed Research International.

In The Last Decade

Klaus Kramer

29 papers receiving 1.0k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Klaus Kramer Germany 16 634 362 331 298 235 31 1.0k
G. T. P. Saccone Australia 16 581 0.9× 164 0.5× 127 0.4× 281 0.9× 107 0.5× 64 918
Lars Lundell Sweden 11 349 0.6× 203 0.6× 98 0.3× 157 0.5× 210 0.9× 22 717
W. Niebel Germany 17 655 1.0× 74 0.2× 193 0.6× 335 1.1× 88 0.4× 69 1.1k
Francesco Paolo Zito Italy 13 204 0.3× 114 0.3× 162 0.5× 113 0.4× 74 0.3× 38 800
Isaac Samuel United States 20 861 1.4× 261 0.7× 50 0.2× 92 0.3× 143 0.6× 56 1.2k
David O. Prichard United States 13 342 0.5× 105 0.3× 274 0.8× 77 0.3× 57 0.2× 43 628
Tomoaki Matsumura Japan 20 714 1.1× 94 0.3× 579 1.7× 707 2.4× 43 0.2× 109 1.4k
Claus Hovendal Denmark 17 555 0.9× 138 0.4× 265 0.8× 288 1.0× 79 0.3× 63 980
J. O. Stadaas Norway 15 415 0.7× 108 0.3× 207 0.6× 159 0.5× 44 0.2× 58 701
Tim O. Vilz Germany 15 570 0.9× 81 0.2× 115 0.3× 107 0.4× 83 0.4× 82 858

Countries citing papers authored by Klaus Kramer

Since Specialization
Citations

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

Fields of papers citing papers by Klaus Kramer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Klaus Kramer

This figure shows the co-authorship network connecting the top 25 collaborators of Klaus Kramer. A scholar is included among the top collaborators of Klaus Kramer 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 Klaus Kramer. Klaus Kramer 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.
Henne‐Bruns, Doris, et al.. (2016). Comparison of Different Risk Classification Systems in 558 Patients with Gastrointestinal Stromal Tumors after R0-Resection. Frontiers in Pharmacology. 7. 504–504. 28 indexed citations
2.
Kramer, Klaus, Uwe Knippschild, Benjamin Mayer, et al.. (2015). Impact of age and gender on tumor related prognosis in gastrointestinal stromal tumors (GIST). BMC Cancer. 15(1). 57–57. 42 indexed citations
3.
Damms-Machado, Antje, Suparna Mitra, Asja E. Schollenberger, et al.. (2015). Effects of Surgical and Dietary Weight Loss Therapy for Obesity on Gut Microbiota Composition and Nutrient Absorption. BioMed Research International. 2015. 1–12. 229 indexed citations
4.
Damms-Machado, Antje, Tobias Meile, Nicole Scheuing, et al.. (2013). Laparoscopic Sleeve Gastrectomy Compared to a Multidisciplinary Weight Loss Program for Obesity—Effects on Body Composition and Protein Status. Obesity Surgery. 23(12). 1957–1965. 41 indexed citations
5.
Friedrich, Anja, Tobias Meile, Antje Damms-Machado, et al.. (2013). PP220-SUN EFFECT OF LAPAROSCOPIC SLEEVE GASTRECTOMY ON LIPID PROFILES, INFLAMMATION MARKERS AND LIVER ENZYMES IN OBESE PATIENTS. Clinical Nutrition. 32. S106–S106. 1 indexed citations
6.
Damms-Machado, Antje, Klaus Kramer, Tobias Meile, et al.. (2012). Pre- and Postoperative Nutritional Deficiencies in Obese Patients Undergoing Laparoscopic Sleeve Gastrectomy. Obesity Surgery. 22(6). 881–889. 168 indexed citations
7.
Konrad, Franziska M., et al.. (2011). Anästhesie bei bariatrischer Chirurgie. Der Anaesthesist. 60(7). 607–616. 6 indexed citations
8.
Giamas, Georgios, Heidrun Hirner, Joachim Bischof, et al.. (2010). Kinases as targets in the treatment of solid tumors. Cellular Signalling. 22(7). 984–1002. 67 indexed citations
9.
Spatz, Hanno, et al.. (2010). Cyclin H expression is increased in GIST with very-highrisk of malignancy. BMC Cancer. 10(1). 350–350. 14 indexed citations
10.
Küper, Markus A., Thomas Kratt, Klaus Kramer, et al.. (2010). Effort, safety, and findings of routine preoperative endoscopic evaluation of morbidly obese patients undergoing bariatric surgery. Surgical Endoscopy. 24(8). 1996–2001. 77 indexed citations
11.
Küper, Markus A., Klaus Kramer, Marty Zdichavsky, et al.. (2009). Dysfunction of the lower esophageal sphincter and dysmotility of the tubular esophagus in morbidly obese patients. Obesity Surgery. 19(8). 1143–1149. 35 indexed citations
12.
Löhler, Jürgen, Heidrun Hirner, Bernhard Schmidt, et al.. (2009). Immunohistochemical Characterisation of Cell-Type Specific Expression of CK1δ in Various Tissues of Young Adult BALB/c Mice. PLoS ONE. 4(1). e4174–e4174. 18 indexed citations
13.
Kornmann, Marko, et al.. (2009). Value of MDCT in Preoperative Local Staging of Rectal Cancer for Predicting the Necessity for Neoadjuvant Radiochemotherapy. RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 181(12). 1168–1174. 6 indexed citations
14.
Breitenstein, Caterina, Klaus Kramer, Marcus Meinzer, et al.. (2008). Intensives Sprachtraining bei Aphasie. Der Nervenarzt. 80(2). 149–154. 12 indexed citations
15.
Küper, Markus A., Ingmar Königsrainer, Diethard Schmidt, et al.. (2008). Morbid Obesity and Subsequent Pancreatic Cancer: Pylorus-Preserving Pancreatoduodenectomy after Laparoscopic Sleeve Gastrectomy. Obesity Surgery. 19(3). 385–388. 7 indexed citations
16.
Wolf, Sebastian, Markus Juchems, Peter Wuerl, et al.. (2008). p16 Expression Differentiates High-Risk Gastrointestinal Stromal Tumor and Predicts Poor Outcome. Neoplasia. 10(10). 1154–1162. 30 indexed citations
17.
Schneider, Joachim H., Klaus Kramer, Alfred Königsrainer, & Frank A. Granderath. (2007). Ambulatory pH: monitoring with a wireless system. Surgical Endoscopy. 21(11). 2076–2080. 23 indexed citations
18.
Schneider, Joachim H., Klaus Kramer, Alfred Königsrainer, & Frank A. Granderath. (2007). The lower esophageal sphincter strength in patients with gastroesophageal reflux before and after laparoscopic Nissen fundoplication. Diseases of the Esophagus. 20(1). 58–62. 6 indexed citations
19.
Kramer, Klaus. (2007). Multiple gastrointestinal stromal tumors and bilateral pheochromocytoma in neurofibromatosis. World Journal of Gastroenterology. 13(24). 3384–3384. 30 indexed citations
20.
Kramer, Klaus, et al.. (2005). Hämorrhagischer Schock bei Doppelmalignom: Gastrointestinaler Stromatumor (GIST) und neuroendokrines Karzinom bei Morbus Recklinghausen. Zeitschrift für Gastroenterologie. 43(3). 281–288. 29 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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