Stefan Janssen

1.3k total citations
142 papers, 875 citations indexed

About

Stefan Janssen is a scholar working on Pulmonary and Respiratory Medicine, Oncology and Surgery. According to data from OpenAlex, Stefan Janssen has authored 142 papers receiving a total of 875 indexed citations (citations by other indexed papers that have themselves been cited), including 88 papers in Pulmonary and Respiratory Medicine, 67 papers in Oncology and 60 papers in Surgery. Recurrent topics in Stefan Janssen's work include Brain Metastases and Treatment (46 papers), Head and Neck Cancer Studies (30 papers) and Management of metastatic bone disease (27 papers). Stefan Janssen is often cited by papers focused on Brain Metastases and Treatment (46 papers), Head and Neck Cancer Studies (30 papers) and Management of metastatic bone disease (27 papers). Stefan Janssen collaborates with scholars based in Germany, United States and Denmark. Stefan Janssen's co-authors include Dirk Rades, Steven E. Schild, Lukas Käsmann, Amira Bajrovic, Tobias Bartscht, Fabian B. Fahlbusch, Michael Bremer, Liesa Dziggel, Louisa Bolm and Mai Trong Khoa and has published in prestigious journals such as BMC Cancer, Cancers and Oral Oncology.

In The Last Decade

Stefan Janssen

134 papers receiving 862 citations

Peers

Stefan Janssen
Fabio Trippa Italy
Najeeb Mohideen United States
Pierre Yves Marcy France
Henry Tsai United States
S. Bourdin France
Jeremy P. Harris United States
Ben G. Szabó Netherlands
Ryan T. Hughes United States
Li‐Min Sun Taiwan
Jerzy Wydmański Poland
Fabio Trippa Italy
Stefan Janssen
Citations per year, relative to Stefan Janssen Stefan Janssen (= 1×) peers Fabio Trippa

Countries citing papers authored by Stefan Janssen

Since Specialization
Citations

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

Fields of papers citing papers by Stefan Janssen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Stefan Janssen

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

All Works

20 of 20 papers shown
1.
Rades, Dirk, et al.. (2025). Bladder Volume <200 ml During a Course of Moderate Hypofractionated Irradiation in Patients With Localized Prostate Cancer. Anticancer Research. 45(2). 701–708. 1 indexed citations
2.
Rades, Dirk, Sabine Bohnet, Stefan Janssen, et al.. (2025). Development of a Scoring Instrument for Identification of Pneumonitis in Older Lung Cancer Patients After Radiotherapy (POLCAR): A Protocol for a Prospective Trial. Cancers. 17(5). 807–807. 1 indexed citations
3.
Rades, Dirk, et al.. (2024). Changes in Bladder Volume During Radiotherapy for Prostate Cancer. Anticancer Research. 44(10). 4457–4463. 1 indexed citations
4.
Rades, Dirk, et al.. (2023). Early Identification of Pneumonitis in Patients Irradiated for Lung Cancer—Final Results of the PARALUC Trial. Cancers. 15(2). 326–326. 7 indexed citations
5.
Janssen, Stefan, et al.. (2023). Treatment Outcomes After Higher-dose Fractionated Stereotactic Radiotherapy (FSRT) Alone for 1-4 Brain Metastases. Anticancer Research. 43(6). 2757–2762. 1 indexed citations
6.
Rades, Dirk, et al.. (2023). Comparison of Three Survival Scores in a Series of Patients ≥80 Years of Age Irradiated for Bone Metastases. Anticancer Research. 43(2). 801–807. 1 indexed citations
7.
Janssen, Stefan, Rami A. El Shafie, Daniel Buergy, et al.. (2023). Mobile applications in radiation oncology—current choices and future potentials. Strahlentherapie und Onkologie. 199(4). 337–349. 3 indexed citations
8.
Janssen, Stefan, et al.. (2022). Distress Scores During a Course of Radiotherapy: A Pilot Study. Anticancer Research. 42(11). 5561–5566. 6 indexed citations
9.
Janssen, Stefan, et al.. (2019). A new instrument for predicting survival of patients with cerebral metastases from breast cancer developed in a homogeneously treated cohort. Radiology and Oncology. 53(2). 219–224. 6 indexed citations
10.
Rades, Dirk, et al.. (2018). Predicting the Ambulatory Status of Patients Irradiated for Metastatic Spinal Cord Compression (MSCC) from Head-and-neck Cancer. Anticancer Research. 38(8). 4833–4837. 5 indexed citations
11.
Rades, Dirk, Rasmus Peuliche Vogelsang, Stefan Janssen, et al.. (2018). A Matched-Pair Study Comparing Surgery Plus Neoadjuvant Radio-Chemotherapy and Surgery Alone for High Rectal Cancers. Anticancer Research. 38(12). 6877–6880. 6 indexed citations
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Janssen, Stefan, et al.. (2017). A New Prognostic Instrument Specifically Designed for Patients Irradiated for Recurrent Carcinoma of the Bladder. In Vivo. 31(3). 435–438. 2 indexed citations
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Dziggel, Liesa, Stefan Janssen, Amira Bajrovic, et al.. (2016). Local Therapies Can Improve Intracerebral Control in Patients with Cerebral Metastasis from Gynecological Cancers. Anticancer Research. 36(9). 4777–4780. 4 indexed citations
18.
Rades, Dirk, Liesa Dziggel, Samer G. Hakim, et al.. (2015). Predicting Survival After Irradiation for Brain Metastases from Head and Neck Cancer.. PubMed. 29(5). 525–8. 12 indexed citations
19.
Janssen, Stefan, et al.. (2015). Nipple-sparing mastectomy in breast cancer patients: The role of adjuvant radiotherapy (Review). Oncology Letters. 9(6). 2435–2441. 13 indexed citations
20.
Janssen, Stefan, et al.. (2012). Hypofractionated stereotactic radiotherapy of limited brain metastases: a single-centre individualized treatment approach. BMC Cancer. 12(1). 497–497. 19 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.

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