Nikolaos Ptohis

35 papers and 309 indexed citations
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About

Nikolaos Ptohis is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Hepatology. According to data from OpenAlex, Nikolaos Ptohis has authored 35 papers receiving a total of 309 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Surgery, 15 papers in Pulmonary and Respiratory Medicine and 7 papers in Hepatology. Recurrent topics in Nikolaos Ptohis’s work include Hepatocellular Carcinoma Treatment and Prognosis (6 papers), Vascular Procedures and Complications (5 papers) and Medical Imaging Techniques and Applications (4 papers). Nikolaos Ptohis is often cited by papers focused on Hepatocellular Carcinoma Treatment and Prognosis (6 papers), Vascular Procedures and Complications (5 papers) and Medical Imaging Techniques and Applications (4 papers). Nikolaos Ptohis collaborates with scholars based in Greece, United States and China. Nikolaos Ptohis's co-authors include Alexis Kelekis, Loukas Thanos, Nikolaos Kelekis, Εlias Brountzos, Spyridon Tsiouris, S. Mylona, Alexandra Nikita, Athanasios Gouliamos, Sofia Mylona and Maria Pomoni and has published in prestigious journals such as World Journal of Gastroenterology, European Radiology and Journal of Neuro-Oncology.

In The Last Decade

Co-authorship network of co-authors of Nikolaos Ptohis

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

Fields of papers citing papers by Nikolaos Ptohis

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Nikolaos Ptohis

Since Specialization
Citations

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