Fredrik Hjern

40 papers and 2.0k indexed citations
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About

Fredrik Hjern is a scholar working on Surgery, Oncology and Emergency Medicine. According to data from OpenAlex, Fredrik Hjern has authored 40 papers receiving a total of 2.0k indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Surgery, 18 papers in Oncology and 12 papers in Emergency Medicine. Recurrent topics in Fredrik Hjern’s work include Diverticular Disease and Complications (20 papers), Colorectal Cancer Surgical Treatments (13 papers) and Appendicitis Diagnosis and Management (12 papers). Fredrik Hjern is often cited by papers focused on Diverticular Disease and Complications (20 papers), Colorectal Cancer Surgical Treatments (13 papers) and Appendicitis Diagnosis and Management (12 papers). Fredrik Hjern collaborates with scholars based in Sweden, United Kingdom and United States. Fredrik Hjern's co-authors include Niclas Håkansson, Alicja Wolk, Kenneth Smedh, Lars Påhlman, Staffan Haapaniemi, Abbas Chabok, Claes Johansson, Anders Mellgren, Anna Martling and Torbjörn Holm and has published in prestigious journals such as The Lancet Oncology, Clinical Cancer Research and The American Journal of Gastroenterology.

In The Last Decade

Co-authorship network of co-authors of Fredrik Hjern

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

Fields of papers citing papers by Fredrik Hjern

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Fredrik Hjern

Since Specialization
Citations

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