This map shows the geographic impact of L Viinikka'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 L Viinikka with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites L Viinikka more than expected).
This network shows the impact of papers produced by L Viinikka. 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 L Viinikka. The network helps show where L Viinikka may publish in the future.
Co-authorship network of co-authors of L Viinikka
This figure shows the co-authorship network connecting the top 25 collaborators of L Viinikka.
A scholar is included among the top collaborators of L Viinikka 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 L Viinikka. L Viinikka is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Ylikorkala, Olavi, Erja Halmesmäki, & L Viinikka. (1988). Urinary prostacyclin and thromboxane metabolites in drinking pregnant women and in their infants: relations to the fetal alcohol effects.. PubMed. 71(1). 61–6.25 indexed citations
Ylikorkala, Olavi, L Viinikka, & P Lehtovirta. (1985). Effect of nicotine on fetal prostacyclin and thromboxane in humans.. PubMed. 66(1). 102–5.46 indexed citations
Puolakka, Jukka, Leo Mäkäräinen, L Viinikka, & O Ylikorkala. (1985). Biochemical and clinical effects of treating the premenstrual syndrome with prostaglandin synthesis precursors.. PubMed. 30(3). 149–53.68 indexed citations
11.
Ylikorkala, Olavi, et al.. (1984). Maternal thromboxane, prostacyclin, and umbilical blood flow in humans.. PubMed. 63(5). 677–80.8 indexed citations
Ylikorkala, O, A Kauppila, Seppo Kivinen, & L Viinikka. (1984). Treatment of inadequate lactation with oral sulpiride and buccal oxytocin.. PubMed. 63(1). 57–60.17 indexed citations
Ylikorkala, Olavi, K Huttunen, Jaakko Järvi, & L Viinikka. (1982). Prostacyclin and thromboxane in chronic uremia: effect of hemodialysis.. PubMed. 18(2). 83–7.18 indexed citations
Viinikka, L, Seppo Kivinen, Lars Rönnberg, & O Ylikorkala. (1981). Experimental hyperprolactinemia and hypoprolactinemia and human chorionic gonadotropin during early pregnancy.. PubMed. 57(4). 441–3.2 indexed citations
Ylikorkala, O & L Viinikka. (1979). Pituitary and ovarian function in women with congenitally absent uterus.. PubMed. 53(1). 137–9.10 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.