Johannes Bobjer

549 total citations
23 papers, 402 citations indexed

About

Johannes Bobjer is a scholar working on Surgery, Endocrinology, Diabetes and Metabolism and Reproductive Medicine. According to data from OpenAlex, Johannes Bobjer has authored 23 papers receiving a total of 402 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Surgery, 8 papers in Endocrinology, Diabetes and Metabolism and 5 papers in Reproductive Medicine. Recurrent topics in Johannes Bobjer's work include Urinary and Genital Oncology Studies (10 papers), Bladder and Urothelial Cancer Treatments (10 papers) and Hormonal and reproductive studies (8 papers). Johannes Bobjer is often cited by papers focused on Urinary and Genital Oncology Studies (10 papers), Bladder and Urothelial Cancer Treatments (10 papers) and Hormonal and reproductive studies (8 papers). Johannes Bobjer collaborates with scholars based in Sweden, Greece and United Kingdom. Johannes Bobjer's co-authors include Aleksander Giwercman, Yvonne Lundberg Giwercman, Christos Tsatsanis, Marianna Katrinaki, Irene Leijonhufvud, Kristina Åkesson, Sten Isaksson, K. Link, Andrew N. Margioris and Eleftheria‐Kleio Dermitzaki and has published in prestigious journals such as PLoS ONE, Human Reproduction and Osteoporosis International.

In The Last Decade

Johannes Bobjer

23 papers receiving 394 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Johannes Bobjer Sweden 10 144 129 112 79 54 23 402
Masaki Yamanaka Japan 15 114 0.8× 183 1.4× 227 2.0× 95 1.2× 111 2.1× 40 654
Filiz Çayan Türkiye 12 75 0.5× 89 0.7× 63 0.6× 42 0.5× 59 1.1× 30 364
Ozan Efesoy Türkiye 13 126 0.9× 120 0.9× 82 0.7× 72 0.9× 64 1.2× 26 398
Muzaffer Temür Türkiye 11 107 0.7× 126 1.0× 46 0.4× 37 0.5× 74 1.4× 46 398
Clelia Cipolla Italy 11 52 0.4× 130 1.0× 90 0.8× 62 0.8× 53 1.0× 46 422
Thomas Chambers United Kingdom 9 116 0.8× 87 0.7× 167 1.5× 70 0.9× 118 2.2× 17 624
Ramon Bossardi Ramos United States 14 155 1.1× 101 0.8× 125 1.1× 36 0.5× 145 2.7× 36 589
Mikko Haanpää Finland 9 68 0.5× 106 0.8× 70 0.6× 25 0.3× 50 0.9× 13 331
Alba Moreno‐Asso Australia 13 270 1.9× 81 0.6× 95 0.8× 67 0.8× 200 3.7× 25 513
Biagio Cangiano Italy 12 191 1.3× 207 1.6× 176 1.6× 48 0.6× 37 0.7× 34 497

Countries citing papers authored by Johannes Bobjer

Since Specialization
Citations

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

Fields of papers citing papers by Johannes Bobjer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Johannes Bobjer

This figure shows the co-authorship network connecting the top 25 collaborators of Johannes Bobjer. A scholar is included among the top collaborators of Johannes Bobjer 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 Johannes Bobjer. Johannes Bobjer 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.
Liedberg, Fredrik, Oskar Hagberg, Firas Aljabery, et al.. (2024). Diagnostic pathways and treatment strategies in upper tract urothelial carcinoma in Sweden between 2015 and 2021: a population-based survey. Scandinavian Journal of Urology. 59. 19–25. 1 indexed citations
2.
Patras, Ioannis, et al.. (2024). Violation of onco-surgical principles is associated with survival outcomes in upper tract urothelial carcinomas after radical nephroureterectomy. Scandinavian Journal of Urology. 59. 131–136. 1 indexed citations
3.
Bobjer, Johannes, Axel Gerdtsson, Gediminas Baseckas, et al.. (2023). Location of Retroperitoneal Lymph Node Metastases in Upper Tract Urothelial Carcinoma: Results from a Prospective Lymph Node Mapping Study. European Urology Open Science. 57. 37–44. 1 indexed citations
4.
Liedberg, Fredrik, Oskar Hagberg, Christel Häggström, et al.. (2023). Preoperative upper tract invasive diagnostic modalities are associated with intravesical recurrence following surgery for upper tract urothelial carcinoma: A population-based study. PLoS ONE. 18(2). e0281304–e0281304. 5 indexed citations
5.
Baseckas, Gediminas, Johannes Bobjer, Axel Gerdtsson, et al.. (2023). Urosymphyseal fistula after pelvic radiotherapy in a tertial referral centre – a rare entity with significant comorbidity requiring multidisciplinary management. Scandinavian Journal of Urology. 58. 4–10. 1 indexed citations
6.
Eriksson, Pontus, Carina Bernardo, Johannes Bobjer, et al.. (2023). Urodrill - a novel MRI-guided endoscopic biopsy technique to sample and molecularly classify muscle-invasive bladder cancer without fractionating the specimen during transurethral resection. European Urology Open Science. 53. 78–82. 1 indexed citations
7.
8.
Liedberg, Fredrik, et al.. (2022). Robot-assisted nephroureterectomy for upper tract urothelial carcinoma—feasibility and complications: a single center experience. Scandinavian Journal of Urology. 56(4). 301–307. 3 indexed citations
9.
Liedberg, Fredrik & Johannes Bobjer. (2021). Urinary diversions for benign and oncologic indications: what did we learn about short term complications in the last 24 months?. Current Opinion in Urology. 31(6). 556–561. 1 indexed citations
10.
Bobjer, Johannes, Oskar Hagberg, Firas Aljabery, et al.. (2021). A population-based study on the effect of a routine second-look resection on survival in primary stage T1 bladder cancer. Scandinavian Journal of Urology. 55(2). 108–115. 3 indexed citations
11.
Bobjer, Johannes, Oskar Hagberg, Firas Aljabery, et al.. (2021). Bladder cancer recurrence in papillary urothelial neoplasm of low malignant potential (PUNLMP) compared to G1 WHO 1999: a population-based study. Scandinavian Journal of Urology. 56(1). 14–18. 2 indexed citations
12.
Isaksson, Sten, Kristina Åkesson, Ingrid Øra, et al.. (2020). Low bone mineral density is associated with hypogonadism and cranial irradiation in male childhood cancer survivors. Osteoporosis International. 31(7). 1261–1272. 7 indexed citations
13.
Finnbogadóttir, Hafrún, et al.. (2019). Symptoms of sexual dysfunction among men from infertile couples: prevalence and association with testosterone deficiency. Andrology. 8(1). 160–165. 17 indexed citations
14.
Bobjer, Johannes, Marianna Katrinaki, Erini Dermitzaki, et al.. (2018). Serum chemerin levels are negatively associated with male fertility and reproductive hormones. Human Reproduction. 33(12). 2168–2174. 12 indexed citations
15.
Bobjer, Johannes, et al.. (2017). Serum microRNAs in male subfertility—biomarkers and a potential pathogenetic link to metabolic syndrome. Journal of Assisted Reproduction and Genetics. 34(10). 1277–1282. 13 indexed citations
16.
Isaksson, Sten, O. Ståhl, Jakob Eberhard, et al.. (2017). High risk of hypogonadism in young male cancer survivors. Clinical Endocrinology. 88(3). 432–441. 27 indexed citations
17.
Bobjer, Johannes, et al.. (2016). High prevalence of hypogonadism and associated impaired metabolic and bone mineral status in subfertile men. Clinical Endocrinology. 85(2). 189–195. 52 indexed citations
18.
Tsatsanis, Christos, Johannes Bobjer, Eleftheria‐Kleio Dermitzaki, et al.. (2015). Serum miR-155 as a potential biomarker of male fertility. Human Reproduction. 30(4). 853–860. 24 indexed citations
19.
Bobjer, Johannes, Marianna Katrinaki, Christos Tsatsanis, Yvonne Lundberg Giwercman, & Aleksander Giwercman. (2013). Negative Association between Testosterone Concentration and Inflammatory Markers in Young Men: A Nested Cross-Sectional Study. PLoS ONE. 8(4). e61466–e61466. 137 indexed citations
20.
Bobjer, Johannes, et al.. (2012). High prevalence of androgen deficiency and abnormal lipid profile in infertile men with non‐obstructive azoospermia. International Journal of Andrology. 35(5). 688–694. 49 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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