Ludger Hillejan

30 papers and 1.2k indexed citations i.

About

Ludger Hillejan is a scholar working on Pulmonary and Respiratory Medicine, Oncology and Surgery. According to data from OpenAlex, Ludger Hillejan has authored 30 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Pulmonary and Respiratory Medicine, 9 papers in Oncology and 7 papers in Surgery. Recurrent topics in Ludger Hillejan’s work include Lung Cancer Diagnosis and Treatment (14 papers), Pleural and Pulmonary Diseases (9 papers) and Lung Cancer Treatments and Mutations (7 papers). Ludger Hillejan is often cited by papers focused on Lung Cancer Diagnosis and Treatment (14 papers), Pleural and Pulmonary Diseases (9 papers) and Lung Cancer Treatments and Mutations (7 papers). Ludger Hillejan collaborates with scholars based in Germany, Italy and France. Ludger Hillejan's co-authors include Alessandro Marra, Georgios Stamatis, Rainer Wiewrodt, L. H. Schmidt, Wolfgang E. Berdel, Carsten Müller‐Tidow, Etmar Bulk, Antje Hascher, D Greschuchna and Steffen Koschmieder and has published in prestigious journals such as Journal of Clinical Oncology, PLoS ONE and Oncogene.

In The Last Decade

Co-authorship network of co-authors of Ludger Hillejan i

Fields of papers citing papers by Ludger Hillejan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Ludger Hillejan

Since Specialization
Citations

This map shows the geographic impact of Ludger Hillejan'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 Ludger Hillejan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ludger Hillejan 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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2025