{"id":"https://openalex.org/A5087488808","orcid":"https://orcid.org/0000-0002-2320-2620","observed_orcids":["https://orcid.org/0000-0002-2320-2620"],"display_name":"Johannes Sverre Willumsen","raw_author_names":["J. S. Willumsen","J.S. Willumsen","Johannes Sverre Willumsen","Willumsen, Johannes S."],"full_name":"Johannes Sverre Willumsen","works_count":8,"cited_by_count":159,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":4,"i10_index":4},"ids":{"openalex":"https://openalex.org/A5087488808","orcid":"https://orcid.org/0000-0002-2320-2620","observed_orcids":["https://orcid.org/0000-0002-2320-2620"]},"affiliations":[{"institution":{"id":"https://openalex.org/I204778367","ror":"https://ror.org/05xg72x27","display_name":"Norwegian University of Science and Technology","country_code":"NO","type":"education","lineage":["https://openalex.org/I204778367"]},"years":[2023,2022,2021,2020]},{"institution":{"id":"https://openalex.org/I2800132241","ror":"https://ror.org/04zn72g03","display_name":"Stavanger University Hospital","country_code":"NO","type":"healthcare","lineage":["https://openalex.org/I2800132241"]},"years":[2021]},{"institution":{"id":"https://openalex.org/I2800267181","ror":"https://ror.org/059yvz347","display_name":"Drammen Hospital","country_code":"NO","type":"healthcare","lineage":["https://openalex.org/I2800267181","https://openalex.org/I2800481633"]},"years":[2021]},{"institution":{"id":"https://openalex.org/I2800481633","ror":"https://ror.org/03wgsrq67","display_name":"Vestre Viken Hospital Trust","country_code":"NO","type":"healthcare","lineage":["https://openalex.org/I2800481633"]},"years":[2021]},{"institution":{"id":"https://openalex.org/I2800740805","ror":"https://ror.org/03np4e098","display_name":"Haukeland University Hospital","country_code":"NO","type":"healthcare","lineage":["https://openalex.org/I2800740805"]},"years":[2021,2020]},{"institution":{"id":"https://openalex.org/I4210092883","ror":"https://ror.org/00k5vcj72","display_name":"Molde Hospital","country_code":"NO","type":"healthcare","lineage":["https://openalex.org/I4210092883","https://openalex.org/I4210163832"]},"years":[2023,2022,2017]},{"institution":{"id":"https://openalex.org/I4210104358","ror":"https://ror.org/01a4hbq44","display_name":"St Olav's University Hospital","country_code":"NO","type":"healthcare","lineage":["https://openalex.org/I4210104358"]},"years":[2020]},{"institution":{"id":"https://openalex.org/I4210163832","ror":"https://ror.org/05ka2ew29","display_name":"Helse M\u00f8re og Romsdal HF","country_code":"NO","type":"healthcare","lineage":["https://openalex.org/I4210163832"]},"years":[2022,2021]},{"institution":{"id":"https://openalex.org/I4432739","ror":"https://ror.org/03zga2b32","display_name":"University of Bergen","country_code":"NO","type":"education","lineage":["https://openalex.org/I4432739"]},"years":[2021,2020]}],"last_known_institutions":[{"id":"https://openalex.org/I204778367","ror":"https://ror.org/05xg72x27","display_name":"Norwegian University of Science and Technology","country_code":"NO","type":"education","lineage":["https://openalex.org/I204778367"]},{"id":"https://openalex.org/I4210092883","ror":"https://ror.org/00k5vcj72","display_name":"Molde Hospital","country_code":"NO","type":"healthcare","lineage":["https://openalex.org/I4210092883","https://openalex.org/I4210163832"]}],"topics":[{"id":"https://openalex.org/T10137","display_name":"Multiple Sclerosis Research Studies","count":5,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Clinical Neurology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11735","display_name":"Peripheral Neuropathies and Disorders","count":3,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Clinical Neurology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10786","display_name":"Maternal Mental Health During Pregnancy and Postpartum","count":2,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational Health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11827","display_name":"Polyomavirus and related diseases","count":2,"subfield":{"id":"https://openalex.org/subfields/2730","display_name":"Oncology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11929","display_name":"Cerebral Venous Sinus Thrombosis","count":2,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Clinical Neurology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"topic_share":[{"id":"https://openalex.org/T11827","display_name":"Polyomavirus and related diseases","value":4.05e-05,"subfield":{"id":"https://openalex.org/subfields/2730","display_name":"Oncology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10137","display_name":"Multiple Sclerosis Research Studies","value":2.02e-05,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Clinical Neurology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11929","display_name":"Cerebral Venous Sinus Thrombosis","value":1.69e-05,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Clinical Neurology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11735","display_name":"Peripheral Neuropathies and Disorders","value":1.43e-05,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Clinical Neurology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11964","display_name":"Pregnancy and Medication Impact","value":1.43e-05,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational Health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.8235999941825867},{"id":"2908647359","wikidata":"https://www.wikidata.org/wiki/Q2625603","display_name":"Population","score":0.6181113719940186},{"id":"118552586","wikidata":"https://www.wikidata.org/wiki/Q7867","display_name":"Psychiatry","score":0.46585211157798767},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.3615511953830719},{"id":"144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","score":0.0}],"counts_by_year":[{"year":2017,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2020,"works_count":1,"oa_works_count":1,"cited_by_count":1},{"year":2021,"works_count":3,"oa_works_count":3,"cited_by_count":9},{"year":2022,"works_count":1,"oa_works_count":1,"cited_by_count":10},{"year":2023,"works_count":1,"oa_works_count":1,"cited_by_count":14},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":28},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":43},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":53}],"display_name_alternatives":["J. S. Willumsen","J.S. Willumsen","Johannes Sverre Willumsen","Willumsen, Johannes S."],"block_key":"j willumsen","works_api_url":"https://api.openalex.org/works?filter=author.id:A5087488808","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5087488808","updated_date":"2026-11-10T14:30:39","created_date":"2017-03-16T00:00:00"}