Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies
if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the
same subfield and year (this is the minimum needed to enter the top 1%, not the average
within it), or reaches the top citation threshold in at least one of its specific research
topics.
A polymorphism in the VKORC1 gene is associated with an interindividual variability in the dose-anticoagulant effect of warfarin
2004549 citationsGiovanna D’Andrea, Rosa D’Ambrosio et al.Bloodprofile →
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late)
cites ·
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This map shows the geographic impact of P Perna'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 P Perna with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites P Perna more than expected).
This network shows the impact of papers produced by P Perna. 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 P Perna. The network helps show where P Perna may publish in the future.
Co-authorship network of co-authors of P Perna
This figure shows the co-authorship network connecting the top 25 collaborators of P Perna.
A scholar is included among the top collaborators of P Perna 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 P Perna. P Perna is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Carlini, Massimo, Claudio Giovannini, Edoardo Mercadante, et al.. (2005). High risk for microcarcinoma in thyroid benign diseases. Incidence in a one year period of total thyroidectomies.. PubMed. 24(2). 231–6.20 indexed citations
7.
D’Andrea, Giovanna, Rosa D’Ambrosio, P Perna, et al.. (2004). A polymorphism in the VKORC1 gene is associated with an interindividual variability in the dose-anticoagulant effect of warfarin. Blood. 105(2). 645–649.549 indexed citations breakdown →
8.
D’Ambrosio, Rosa, Giovanna D’Andrea, Filomena Cappucci, et al.. (2004). Polymorphisms in factor II and factor VII genes modulate oral anticoagulation with warfarin.. PubMed. 89(12). 1510–6.35 indexed citations
9.
D’Andrea, Giovanna, P Perna, Vincenzo Brancaccio, et al.. (2003). A novel G-to-A mutation in the intron-N of the protein S gene leading to abnormal RNA splicing in a patient with protein S deficiency.. PubMed. 88(4). 459–64.10 indexed citations
Perna, P, et al.. (1983). [Sensitivity of bacteria exposed to subinhibitory concentrations of antibiotics to the action of serum and liver phagocytes].. PubMed. 59(11). 1683–6.2 indexed citations
12.
Galante, Domenico, et al.. (1982). Decreased phagocytic and bactericidal activity of the hepatic reticuloendothelial system during chronic ethanol treatment and its restoration by levamisole.. PubMed. 32(3). 179–87.26 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.