This map shows the geographic impact of R Happle'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 Happle with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R Happle more than expected).
This network shows the impact of papers produced by R Happle. 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 Happle. The network helps show where R Happle may publish in the future.
Co-authorship network of co-authors of R Happle
This figure shows the co-authorship network connecting the top 25 collaborators of R Happle.
A scholar is included among the top collaborators of R Happle 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 Happle. R Happle is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Hoffman, Roger A., et al.. (2008). Hermansky-Pudlak Syndrome. PubMed. 11(4). 863–863.5 indexed citations
3.
Schachner, Lawrence A., Ronald C. Hansen, R Happle, et al.. (2003). Pediatric Dermatology. 3rd Edition.2 indexed citations
4.
Freyschmidt‐Paul, Pia, et al.. (2001). Tricho-rhino-phalangeal syndrome type I. European Journal of Dermatology. 11(4).
5.
Freyschmidt‐Paul, Pia, Andreas Ziegler, Kevin J. McElwee, et al.. (2001). Treatment of alopecia areata in C3H/HeJ mice with the topical immunosuppressant FK506 (Tacrolimus).. PubMed. 11(5). 405–9.35 indexed citations
6.
Steijlen, Peter M., Henk E. Viëtor, Maurice A. M. Van Steensel, & R Happle. (2000). Hypomelanosis of Ito: divergent results reflecting genetic heterogeneity.. European Journal of Dermatology. 9. 217–219.1 indexed citations
7.
Steijlen, Peter M., Henk E. Viëtor, Maurice A. M. Van Steensel, & R Happle. (2000). Sweat testing in hypomelanosis of Ito: divergent results reflecting genetic heterogeneity.. PubMed. 10(3). 217–9.4 indexed citations
8.
Freyschmidt‐Paul, Pia, Henning Hamm, R Happle, & RW Hoffmann. (1999). Pronounced perifollicular lymphocytic infiltrates in alopecia areata are associated with poor treatment response to diphencyprone.. PubMed. 9(2). 111–4.5 indexed citations
9.
König, Arne, Wolfgang Küster, R. Berger, & R Happle. (1997). Autosomal dominant inheritance of HID syndrome (hystrix-likeichthyosis with deafness). European Journal of Dermatology. 7(8). 554–555.6 indexed citations
10.
Happle, R, et al.. (1996). Ichthyosis bullosa of Siemens : a distinct type of epidermolytic hyperkeratosis. European Journal of Dermatology. 6(3). 164–167.2 indexed citations
Happle, R. (1991). The Renbok phenomenon. An inverse Koebner reaction observed in alopecia areata. European Journal of Dermatology. 2. 39–40.41 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.