Hannu Nikula

26 papers and 670 indexed citations
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About

Hannu Nikula is a scholar working on Reproductive Medicine, Endocrinology, Diabetes and Metabolism and Molecular Biology. According to data from OpenAlex, Hannu Nikula has authored 26 papers receiving a total of 670 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Reproductive Medicine, 11 papers in Endocrinology, Diabetes and Metabolism and 8 papers in Molecular Biology. Recurrent topics in Hannu Nikula’s work include Sperm and Testicular Function (13 papers), Hormonal and reproductive studies (8 papers) and Hypothalamic control of reproductive hormones (6 papers). Hannu Nikula is often cited by papers focused on Sperm and Testicular Function (13 papers), Hormonal and reproductive studies (8 papers) and Hypothalamic control of reproductive hormones (6 papers). Hannu Nikula collaborates with scholars based in Finland, Sweden and United Kingdom. Hannu Nikula's co-authors include Ilpo Huhtaniemi, S. Rannikko, M. Parvinen, Martti Parvinen, Jorma Toppari, Marko Kaleva, Zvi Naor, Jan‐Erik Damber, Anders Bergh and Kaija‐Leena Kolho and has published in prestigious journals such as The Journal of Clinical Endocrinology & Metabolism, Endocrinology and Annals of the New York Academy of Sciences.

In The Last Decade

Co-authorship network of co-authors of Hannu Nikula

This figure shows the co-authorship network connecting the top 25 collaborators of Hannu Nikula. A scholar is included among the top collaborators of Hannu Nikula 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 Hannu Nikula. Hannu Nikula is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

Fields of papers citing papers by Hannu Nikula

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Hannu Nikula

Since Specialization
Citations

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

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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2026