P. Alken

15.1k total citations · 3 hit papers
409 papers, 10.4k citations indexed

About

P. Alken is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Urology. According to data from OpenAlex, P. Alken has authored 409 papers receiving a total of 10.4k indexed citations (citations by other indexed papers that have themselves been cited), including 188 papers in Pulmonary and Respiratory Medicine, 122 papers in Surgery and 113 papers in Urology. Recurrent topics in P. Alken's work include Kidney Stones and Urolithiasis Treatments (106 papers), Pediatric Urology and Nephrology Studies (95 papers) and Urinary Bladder and Prostate Research (77 papers). P. Alken is often cited by papers focused on Kidney Stones and Urolithiasis Treatments (106 papers), Pediatric Urology and Nephrology Studies (95 papers) and Urinary Bladder and Prostate Research (77 papers). P. Alken collaborates with scholars based in Germany, United States and Netherlands. P. Alken's co-authors include Thomas Knoll, Maurice Stephan Michel, Michele Gallucci, K.U. Köhrmann, Jens Rassweiler, Daniel Ackermann, Gunnar Wendt‐Nordahl, D. M. Wilbert, Pierre Conort and H.‐G. Tiselius and has published in prestigious journals such as Radiology, Journal of the American Society of Nephrology and The Journal of Urology.

In The Last Decade

P. Alken

388 papers receiving 9.9k citations

Hit Papers

Guidelines on Urolithiasis<footref rid="foot01">&lt... 2001 2026 2009 2017 2001 2007 2007 250 500 750
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Guidelines on Urolithiasis<footref rid="foot01"><sup>1</sup></footref>
    2001 876 citations P. Alken, Michele Gallucci et al. European Urology profile →
  2. 2007 Guideline for the Management of Ureteral Calculi
    2007 817 citations P. Alken, Michele Gallucci et al. European Urology profile →
  3. 2007 Guideline for the Management of Ureteral Calculi
    2007 539 citations P. Alken, Michele Gallucci et al. profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
P. Alken Germany 48 6.2k 4.1k 2.6k 2.3k 1.5k 409 10.4k
Michele Gallucci Italy 49 5.1k 0.8× 2.4k 0.6× 3.0k 1.2× 1.7k 0.7× 861 0.6× 364 10.1k
Stephen Y. Nakada United States 51 8.1k 1.3× 5.3k 1.3× 1.8k 0.7× 1.3k 0.6× 1.6k 1.1× 302 10.2k
David Albala United States 43 4.1k 0.7× 2.0k 0.5× 2.1k 0.8× 1.0k 0.4× 950 0.6× 209 6.4k
Robert J. Stein United States 46 3.8k 0.6× 1.4k 0.3× 3.7k 1.4× 864 0.4× 929 0.6× 227 7.2k
Andreas Skolarikos Greece 42 5.7k 0.9× 3.6k 0.9× 1.4k 0.5× 1.6k 0.7× 1.2k 0.8× 261 7.3k
Thomas Knoll Germany 40 6.4k 1.0× 4.5k 1.1× 989 0.4× 1.4k 0.6× 1.5k 1.0× 203 8.1k
Maurice Stephan Michel Germany 42 3.6k 0.6× 1.5k 0.4× 1.2k 0.5× 1.2k 0.5× 359 0.2× 285 6.2k
Christian Seitz Austria 35 4.4k 0.7× 2.5k 0.6× 1.7k 0.6× 922 0.4× 798 0.5× 136 5.9k
Koon Ho Rha South Korea 44 4.2k 0.7× 735 0.2× 2.9k 1.1× 915 0.4× 446 0.3× 353 7.0k
Urs E. Studer Switzerland 69 5.4k 0.9× 826 0.2× 9.5k 3.6× 5.6k 2.4× 1.0k 0.7× 345 14.5k

Countries citing papers authored by P. Alken

Since Specialization
Citations

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

Fields of papers citing papers by P. Alken

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of P. Alken

This figure shows the co-authorship network connecting the top 25 collaborators of P. Alken. A scholar is included among the top collaborators of P. Alken 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 P. Alken. P. Alken 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.
Alken, P.. (2017). Intracorporeal lithotripsy. Urolithiasis. 46(1). 19–29. 3 indexed citations
2.
Müller, Stefan, et al.. (2012). Qualität und Objektivierbarkeit der Aus- und Weiterbildung in der Urologie. Der Urologe. 51(8). 1065–1073. 6 indexed citations
3.
Voß, Martin, Annette Steidler, Rainer Grobholz, et al.. (2008). The lymphatic system and its specific growth factor vascular endothelial growth factor C in kidney tissue and in renal cell carcinoma. British Journal of Urology. 104(1). 94–99. 7 indexed citations
4.
Hatzinger, Martin, et al.. (2007). Nephropexy in the course of time. Aspects of an historical surgical technique. Urologe A. 46(2). 166–169. 3 indexed citations
5.
Honeck, Patrick, et al.. (2007). Die Perinealsonographie im Vergleich zum lateralen Zysturethrogramm bei der Inkontinenzdiagnostik der Frau. Aktuelle Urologie. 38(2). 144–147. 4 indexed citations
6.
Kamp, S., Thomas Knoll, Mahmoud M. Osman, et al.. (2005). Donor‐site morbidity in buccal mucosa urethroplasty: lower lip or inner cheek?. British Journal of Urology. 96(4). 619–623. 74 indexed citations
7.
Wendt‐Nordahl, Gunnar, Axel Häcker, Oliver Reich, et al.. (2004). The Vista System: A New Bipolar Resection Device for Endourological Procedures: Comparison with Conventional Resectoscope. European Urology. 46(5). 586–590. 62 indexed citations
8.
Manning, Martina, et al.. (2003). Spontaneous tumescence after implantation of three-piece hydraulic penile prostheses: a short-term experience. International Journal of Impotence Research. 15(3). 152–155. 5 indexed citations
9.
Michel, M.S., Thomas Knoll, K.U. Köhrmann, & P. Alken. (2002). The URO Mentor: development and evaluation of a new computer‐based interactive training system for virtual life‐like simulation of diagnostic and therapeutic endourological procedures. British Journal of Urology. 89(3). 174–177. 55 indexed citations
10.
Köhrmann, K.U., et al.. (2002). Technical characterization of an ultrasound source for noninvasive thermoablation by high‐intensity focused ultrasound. British Journal of Urology. 90(3). 248–252. 31 indexed citations
11.
Martin, X., David A. Tolley, Michele Gallucci, & P. Alken. (2001). The Difficult Stone Case: Definition and Management. European Urology. 40(1). 97–105. 57 indexed citations
12.
Siegsmund, M., et al.. (1999). Expression of the gene for the multidrug resistance-associated protein in human prostate tissue. Urological Research. 27(3). 164–168. 6 indexed citations
13.
Alken, P., et al.. (1998). High-Flow Priapism Leading to the Diagnosis of Lung Cancer. Urologia Internationalis. 60(2). 126–127. 7 indexed citations
14.
Brändle, E, Richard E. Hautmann, P. Alken, et al.. (1997). [Diagnosis of bladder calculi].. PubMed. 36(6). 579–81. 3 indexed citations
15.
Stock, Cameron, et al.. (1996). [Transperitoneal and retroperitoneal laparoscopic nephrectomy in comparison with conventional nephrectomy].. PubMed. 35(3). 215–22. 8 indexed citations
16.
Köhrmann, K.U., et al.. (1993). [Antegrade-retrograde urethrotomy in therapy of high degree urethral stricture].. PubMed. 60(3). 321–30. 1 indexed citations
17.
Alken, P., et al.. (1989). Slightly Radiopaque Uric Acid Calculi: Impact upon Therapeutic Considerations?. Urologia Internationalis. 44(5). 292–297. 4 indexed citations
18.
Stöckle, Michael, et al.. (1988). Retrospective analysis of 246 patients after radical cystectomy for treatment of bladder cancer without preoperative radiotherapy.. PubMed. 260. 461–7.
19.
Stöckle, Michael, P. Alken, U. Engelmann, et al.. (1987). Radical Cystectomy - Often Too Late?. European Urology. 13(6). 361–367. 123 indexed citations
20.
Schneider, H.-J. & P. Alken. (1986). Urolithiasis : therapy, prevention. Springer eBooks. 7 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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