{"id":"https://openalex.org/A5015769950","orcid":null,"observed_orcids":[],"display_name":"R Opsahl","raw_author_names":["R OPSAHL","R Opsahl","ROALD OPSAHL","Roald .Opsahl","Roald Opsahl"],"full_name":"Roald .Opsahl","works_count":31,"cited_by_count":81,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":5,"i10_index":4},"ids":{"openalex":"https://openalex.org/A5015769950","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I1281400175","ror":"https://ror.org/00j9c2840","display_name":"Oslo University Hospital","country_code":"NO","type":"healthcare","lineage":["https://openalex.org/I1281400175"]},"years":[1969,1967,1965,1964,1962,1943,1936]},{"institution":{"id":"https://openalex.org/I184942183","ror":"https://ror.org/01xtthb56","display_name":"University of Oslo","country_code":"NO","type":"education","lineage":["https://openalex.org/I184942183"]},"years":[1969]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T10038","display_name":"Tuberculosis Research and Epidemiology","count":2,"subfield":{"id":"https://openalex.org/subfields/2725","display_name":"Infectious Diseases"},"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/T10060","display_name":"Smoking Behavior and Cessation","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/T10254","display_name":"Innovations in Medical Education","count":2,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10365","display_name":"Gastrointestinal motility and disorders","count":2,"subfield":{"id":"https://openalex.org/subfields/2715","display_name":"Gastroenterology"},"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/T10418","display_name":"Pelvic floor disorders treatments","count":2,"subfield":{"id":"https://openalex.org/subfields/2748","display_name":"Urology"},"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/T12876","display_name":"Potassium and Related Disorders","value":4.84e-05,"subfield":{"id":"https://openalex.org/subfields/2727","display_name":"Nephrology"},"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/T13176","display_name":"Winter Sports Injuries and Performance","value":3.4e-05,"subfield":{"id":"https://openalex.org/subfields/2732","display_name":"Orthopedics and Sports Medicine"},"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/T12962","display_name":"Nephrotoxicity and Medicinal Plants","value":3.36e-05,"subfield":{"id":"https://openalex.org/subfields/2727","display_name":"Nephrology"},"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/T12840","display_name":"Renal function and acid-base balance","value":3.31e-05,"subfield":{"id":"https://openalex.org/subfields/2727","display_name":"Nephrology"},"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/T14199","display_name":"Historical and Scientific Studies","value":3.07e-05,"subfield":{"id":"https://openalex.org/subfields/2734","display_name":"Pathology and Forensic Medicine"},"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":0.8952949047088623},{"id":"2778805511","wikidata":"https://www.wikidata.org/wiki/Q1713","display_name":"Citation","score":0.6576040983200073},{"id":"161191863","wikidata":"https://www.wikidata.org/wiki/Q199655","display_name":"Library science","score":0.4837184250354767},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.3523232340812683},{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.24411743879318237}],"counts_by_year":[{"year":1933,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1936,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1939,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1943,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1948,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1949,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1953,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1954,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1955,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1959,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1960,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1961,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1962,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1963,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1964,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":1965,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1967,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1969,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":1}],"display_name_alternatives":["R OPSAHL","R Opsahl","ROALD OPSAHL","Roald .Opsahl","Roald Opsahl"],"block_key":"r opsahl","works_api_url":"https://api.openalex.org/works?filter=author.id:A5015769950","updated_date":"2026-11-04T11:47:51","created_date":"2016-06-24T00:00:00"}