This map shows the geographic impact of S Tůma'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 S Tůma with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites S Tůma more than expected).
This network shows the impact of papers produced by S Tůma. 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 S Tůma. The network helps show where S Tůma may publish in the future.
Co-authorship network of co-authors of S Tůma
This figure shows the co-authorship network connecting the top 25 collaborators of S Tůma.
A scholar is included among the top collaborators of S Tůma 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 S Tůma. S Tůma is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
All Works
15 of 15 papers shown
1.
Martínez‐Zapata, María José, Robin W.M. Vernooij, Daniel Simancas‐Racines, et al.. (2020). Phlebotonics for venous insufficiency. Cochrane Database of Systematic Reviews. 2020(11).38 indexed citations
2.
Martínez‐Zapata, María José, Robin W.M. Vernooij, S Tůma, et al.. (2016). Phlebotonics for venous insufficiency. Cochrane Database of Systematic Reviews. 11. CD003229–CD003229.114 indexed citations
Janda, J, et al.. (1986). [Thrombosis of the inferior vena cava with successive lung embolization in a 15-year-old boy with nephrotic syndrome].. PubMed. 21(1). 177–74.3 indexed citations
9.
Fišer, Bohumil, et al.. (1981). [Anomalous left coronary artery originating from the pulmonary artery in infants].. PubMed. 106(14). 945–54.1 indexed citations
Tůma, S, et al.. (1975). Selective bronchial arteriography in children.. PubMed. 44(6). 543–9.5 indexed citations
12.
Zapletal, A, et al.. (1973). Assessment of airway function in children.. PubMed. 8(3). 535–44.24 indexed citations
13.
Tůma, S, et al.. (1973). [The angiographic picture of coronary artery abnormalities in childhood].. PubMed. 13(10). 413–6.1 indexed citations
14.
Vorísková, M, et al.. (1973). [Non-rheumatic mitral insufficiency].. PubMed. 28(5). 223–6.2 indexed citations
15.
Tůma, S, et al.. (1966). [Plication of the greater curvature and gastric torsion in newborn infants].. PubMed. 21(6). 481–6.1 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.