{"id":"https://openalex.org/A5111819746","orcid":null,"observed_orcids":[],"display_name":"Nils B. Fjeld","raw_author_names":["Fjeld Nb","N B Fjeld","N FJELD","N. B. FJELD","N. B. Fjeld","N. Fjeld","NB Fjeld","Nils B. Fjeld","Nils Bj Fjeld","Nils Bj\u00f6rn Fjeld","Nils Bj\u00f8rn Fjeld","Nils Fjeld"],"full_name":"Nils Bj Fjeld","works_count":60,"cited_by_count":597,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":12,"i10_index":13},"ids":{"openalex":"https://openalex.org/A5111819746","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":[2013,1996,1995,1994,1993,1979,1976]},{"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":[1996,1995,1993,1989,1987,1981,1974]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T11951","display_name":"Trauma Management and Diagnosis","count":14,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"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/T10172","display_name":"Cardiac Valve Diseases and Treatments","count":13,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular 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/T11055","display_name":"Cardiac and Coronary Surgery Techniques","count":13,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"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/T11356","display_name":"Pleural and Pulmonary Diseases","count":11,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory 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/T12598","display_name":"Cardiac Structural Anomalies and Repair","count":11,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"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/T12598","display_name":"Cardiac Structural Anomalies and Repair","value":0.0001037,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"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/T12818","display_name":"Pneumothorax, Barotrauma, Emphysema","value":0.0001016,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory 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/T11951","display_name":"Trauma Management and Diagnosis","value":9.23e-05,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"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/T12434","display_name":"Phosphodiesterase function and regulation","value":8.11e-05,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T11356","display_name":"Pleural and Pulmonary Diseases","value":5.33e-05,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory 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":0.9865930080413818},{"id":"141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","score":0.788080632686615},{"id":"164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","score":0.7504459619522095},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.694683313369751},{"id":"2778198053","wikidata":"https://www.wikidata.org/wiki/Q181754","display_name":"Heart failure","score":0.5714886784553528}],"counts_by_year":[{"year":1972,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1973,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1974,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1976,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1977,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1979,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1981,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1983,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1984,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1985,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1986,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":1987,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1988,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1989,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1990,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1991,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1993,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":1994,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1995,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":1998,"works_count":6,"oa_works_count":0,"cited_by_count":0},{"year":1999,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":17},{"year":2013,"works_count":1,"oa_works_count":1,"cited_by_count":26},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":9},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":10},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":11},{"year":2017,"works_count":1,"oa_works_count":1,"cited_by_count":8},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":9},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":5},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":9},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":13},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":4}],"display_name_alternatives":["Fjeld Nb","N B Fjeld","N FJELD","N. B. FJELD","N. B. Fjeld","N. Fjeld","NB Fjeld","Nils B. Fjeld","Nils Bj Fjeld","Nils Bj\u00f6rn Fjeld","Nils Bj\u00f8rn Fjeld","Nils Fjeld"],"block_key":"n fjeld","works_api_url":"https://api.openalex.org/works?filter=author.id:A5111819746","updated_date":"2026-11-07T12:08:38","created_date":"2016-06-24T00:00:00"}