Sibrand Gratama

26 papers and 203 indexed citations i.

About

Sibrand Gratama is a scholar working on Surgery, Epidemiology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Sibrand Gratama has authored 26 papers receiving a total of 203 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Surgery, 4 papers in Epidemiology and 3 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Sibrand Gratama’s work include Parasitic Diseases Research and Treatment (3 papers), Ovarian cancer diagnosis and treatment (3 papers) and Metastasis and carcinoma case studies (2 papers). Sibrand Gratama is often cited by papers focused on Parasitic Diseases Research and Treatment (3 papers), Ovarian cancer diagnosis and treatment (3 papers) and Metastasis and carcinoma case studies (2 papers). Sibrand Gratama collaborates with scholars based in The Netherlands and United States. Sibrand Gratama's co-authors include A. Talerman, Takashi Okagaki, W. Hijmans, H. A. Valkenburg, H. Menke, C. J. van Steensel, Frank Smedts, Johannes Mulder, Hindrik Mulder and R. Whitehead and has published in prestigious journals such as Notes and Queries, Cancer and Journal of Bone and Joint Surgery.

In The Last Decade

Co-authorship network of co-authors of Sibrand Gratama i

Fields of papers citing papers by Sibrand Gratama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Sibrand Gratama

Since Specialization
Citations

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