F.‐M. Köhn

986 total citations
49 papers, 572 citations indexed

About

F.‐M. Köhn is a scholar working on Reproductive Medicine, Public Health, Environmental and Occupational Health and Surgery. According to data from OpenAlex, F.‐M. Köhn has authored 49 papers receiving a total of 572 indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Reproductive Medicine, 13 papers in Public Health, Environmental and Occupational Health and 11 papers in Surgery. Recurrent topics in F.‐M. Köhn's work include Sperm and Testicular Function (18 papers), Reproductive Biology and Fertility (12 papers) and Hormonal and reproductive studies (11 papers). F.‐M. Köhn is often cited by papers focused on Sperm and Testicular Function (18 papers), Reproductive Biology and Fertility (12 papers) and Hormonal and reproductive studies (11 papers). F.‐M. Köhn collaborates with scholars based in Germany, Austria and Finland. F.‐M. Köhn's co-authors include Artur Mayerhofer, U. Schwarzer, Wolf‐Bernhard Schill, Johannes Ring, Stephan Weidinger, Lourens J.D. Zaneveld, S. R. Mack, Martin Albrecht, Lars Kunz and Julia Schwarzer and has published in prestigious journals such as Endocrinology, Human Reproduction and Biology of Reproduction.

In The Last Decade

F.‐M. Köhn

36 papers receiving 533 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
F.‐M. Köhn Germany	13	309	166	128	106	101	49	572
Frank‐Michael Köhn Germany	11	106 0.3×	48 0.3×	70 0.5×	42 0.4×	47 0.5×	45	306
Theodoros Maltaris Germany	19	468 1.5×	603 3.6×	142 1.1×	58 0.5×	196 1.9×	45	897
Essam Nada Egypt	14	753 2.4×	591 3.6×	48 0.4×	106 1.0×	69 0.7×	35	1.2k
Juan Carlos Lavieri Argentina	9	465 1.5×	248 1.5×	186 1.5×	103 1.0×	190 1.9×	12	716
H. Moes Netherlands	14	76 0.2×	139 0.8×	114 0.9×	90 0.8×	78 0.8×	33	662
James Aiman United States	15	326 1.1×	224 1.3×	82 0.6×	227 2.1×	306 3.0×	30	795
M. Bals‐Pratsch Germany	20	594 1.9×	353 2.1×	95 0.7×	202 1.9×	299 3.0×	70	1.1k
Paulina M. Merino Chile	15	508 1.6×	279 1.7×	57 0.4×	130 1.2×	135 1.3×	34	777
Marvin A. Yussman United States	20	729 2.4×	302 1.8×	160 1.3×	182 1.7×	114 1.1×	45	1.3k
Ido Ben‐Ami Israel	19	396 1.3×	483 2.9×	68 0.5×	87 0.8×	178 1.8×	48	915

Countries citing papers authored by F.‐M. Köhn

Since Specialization

Citations

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

Fields of papers citing papers by F.‐M. Köhn

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by F.‐M. Köhn. 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 F.‐M. Köhn. The network helps show where F.‐M. Köhn may publish in the future.

Co-authorship network of co-authors of F.‐M. Köhn

This figure shows the co-authorship network connecting the top 25 collaborators of F.‐M. Köhn. A scholar is included among the top collaborators of F.‐M. Köhn 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 F.‐M. Köhn. F.‐M. Köhn 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

Köhn, F.‐M., Sabine Kliesch, Germar‐Michael Pinggera, H.‐C. Schuppe, & Frank Tüttelmann. (2020). Andrologische Diagnostik vor einer reproduktionsmedizinischen Behandlung. Der Urologe. 59(7). 855–868. 2 indexed citations

Schuppe, Hans‐Christian & F.‐M. Köhn. (2018). Einfluss von Lebensstil und Umweltfaktoren auf die reproduktive Gesundheit des Mannes. Der Hautarzt. 69(12). 996–1005. 5 indexed citations

Köhn, F.‐M., et al.. (2016). Hauterkrankungen am äußeren männlichen Genitale. Der Urologe. 55(7). 981–996. 4 indexed citations

Köhn, F.‐M. & Hans‐Christian Schuppe. (2016). Umweltfaktoren und männliche Fertilität. Der Urologe. 55(7). 877–882. 8 indexed citations

Welter, H., et al.. (2012). Partial loss of contractile marker proteins in human testicular peritubular cells in infertility patients. Andrology. 1(2). 318–324. 39 indexed citations

Hofer, Christian, F.‐M. Köhn, Georgios Hatzichristodoulou, Juergen E. Gschwend, & Uwe Treiber. (2011). Lichen sclerosus im Urogenitalbereich. Der Urologe. 50(10). 1291–1296. 1 indexed citations

Adam, M., Henryk F. Urbanski, Vasilios T. Garyfallou, et al.. (2011). High levels of the extracellular matrix proteoglycan decorin are associated with inhibition of testicular function. International Journal of Andrology. 35(4). 550–561. 32 indexed citations

Köhn, F.‐M., et al.. (2010). Glial cell line-derived neurotrophic factor is constitutively produced by human testicular peritubular cells and may contribute to the spermatogonial stem cell niche in man. Human Reproduction. 25(9). 2181–2187. 80 indexed citations

Köhn, F.‐M., Hans‐Christian Schuppe, & Gerhard Haidl. (2010). Andrologie. Der Hautarzt. 61(9). 787–807. 1 indexed citations

10.

Hager, Alfred, et al.. (2009). Sexuality and subjective wellbeing in male patients with congenital heart disease. Heart. 95(14). 1179–1183. 33 indexed citations

11.

Köhn, F.‐M., et al.. (2009). Penile skin diseases. Andrologia. 31(S1). 3–11. 14 indexed citations

12.

Köhn, F.‐M. & Matthias Möhrenschlager. (2008). Juckreiz, Schmerzen, fleckige Herde. MMW - Fortschritte der Medizin. 150(38). 27–27. 4 indexed citations

13.

Sperling, H., et al.. (2006). LOH (late onset hypogonadism) oder „aging male“. Der Urologe. 45(S04). 163–168. 1 indexed citations

14.

Köhn, F.‐M., et al.. (2006). Cave: Tabus bei Tattoos. MMW - Fortschritte der Medizin. 148(41). 34–36.

15.

Weidinger, Stephan, Artur Mayerhofer, Lars Kunz, et al.. (2004). Tryptase inhibits motility of human spermatozoa mainly by activation of the mitogen-activated protein kinase pathway. Human Reproduction. 20(2). 456–461. 27 indexed citations

16.

Guttenbach, Martina, F.‐M. Köhn, Wolfgang Engel, & Michael Schmid. (2000). Meiotic Nondisjunction of Chromosomes 1, 17, 18, X, and Y in Men More Than 80 Years of Age. Biology of Reproduction. 63(6). 1727–1729. 37 indexed citations

17.

Köhn, F.‐M. & Wolf‐Bernhard Schill. (1998). Behandlung des isolierten Testosteronmangels. Der Hautarzt. 49(10). 789–790.

18.

Köhn, F.‐M., S. R. Mack, Wolf‐Bernhard Schill, & Lourens J.D. Zaneveld. (1997). Detection of human sperm acrosome reaction: comparison between methods using double staining, Pisum sativum agglutinin, concanavalin A and transmission electron microscopy. Human Reproduction. 12(4). 714–721. 47 indexed citations

19.

Köhn, F.‐M., et al.. (1996). In Vitro Effect of Escherichia Coli on Human Sperm Acrosome Reaction. Archives of Andrology. 37(2). 73–78. 34 indexed citations

20.

Köhn, F.‐M. & W.‐B. Schill. (1996). Umweltmedizin und Andrologie: Abnahme der Ejakulatqualität in den letzten 50 Jahren?. Der Hautarzt. 47(12). 891–893. 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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