{"id":"https://openalex.org/W4229565630","doi":"https://doi.org/10.1016/s0002-9149(99)80463-9","title":"Introduction","display_name":"Introduction","publication_year":1995,"publication_date":"1995-09-01","ids":{"openalex":"https://openalex.org/W4229565630","doi":"https://doi.org/10.1016/s0002-9149(99)80463-9"},"language":"en","primary_location":{"id":"doi:10.1016/s0002-9149(99)80463-9","doi":"https://doi.org/10.1016/s0002-9149(99)80463-9","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0002-9149(99)80463-9","pdf_url":null,"source":{"id":"https://openalex.org/S185186944","display_name":"The American Journal of Cardiology","issn_l":"0002-9149","issn":["0002-9149","1879-1913"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-b","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The American Journal of Cardiology","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5021876776","display_name":"Frank M. Sacks","orcid":"https://orcid.org/0000-0003-1341-1995","observed_orcids":["https://orcid.org/0000-0003-1341-1995"]},"institutions":[{"id":"https://openalex.org/I136199984","display_name":"Harvard University","ror":"https://ror.org/03vek6s52","country_code":"US","type":"education","lineage":["https://openalex.org/I136199984"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Frank M. Sacks","raw_affiliation_strings":["From the Department of Medicine, Harvard Medical School, Brigham, USA","From the Women's Hospital, Boston, Massachusetts, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"From the Department of Medicine, Harvard Medical School, Brigham, USA","institution_ids":["https://openalex.org/I136199984"]},{"raw_affiliation_string":"From the Women's Hospital, Boston, Massachusetts, USA","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031560506","display_name":"Marc Alan Pfeffer","orcid":"https://orcid.org/0000-0003-3876-7568","observed_orcids":["https://orcid.org/0000-0003-3876-7568"]},"institutions":[{"id":"https://openalex.org/I136199984","display_name":"Harvard University","ror":"https://ror.org/03vek6s52","country_code":"US","type":"education","lineage":["https://openalex.org/I136199984"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Marc A. Pfeffer","raw_affiliation_strings":["From the Department of Medicine, Harvard Medical School, Brigham, USA","From the Women's Hospital, Boston, Massachusetts, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"From the Department of Medicine, Harvard Medical School, Brigham, USA","institution_ids":["https://openalex.org/I136199984"]},{"raw_affiliation_string":"From the Women's Hospital, Boston, Massachusetts, USA","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5022267024","display_name":"Eugene Braunwald","orcid":"https://orcid.org/0000-0002-3472-626X","observed_orcids":["https://orcid.org/0000-0002-3472-626X"]},"institutions":[{"id":"https://openalex.org/I136199984","display_name":"Harvard University","ror":"https://ror.org/03vek6s52","country_code":"US","type":"education","lineage":["https://openalex.org/I136199984"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Eugene Braunwald","raw_affiliation_strings":["From the Department of Medicine, Harvard Medical School, Brigham, USA","From the Women's Hospital, Boston, Massachusetts, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"From the Department of Medicine, Harvard Medical School, Brigham, USA","institution_ids":["https://openalex.org/I136199984"]},{"raw_affiliation_string":"From the Women's Hospital, Boston, Massachusetts, USA","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5021876776"],"corresponding_institution_ids":["https://openalex.org/I136199984"],"apc_list":{"value":3380,"currency":"USD","value_usd":3380},"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":"76","issue":"9","first_page":"1C","last_page":"4C"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":null,"topics":[],"keywords":[],"concepts":[{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.31037893891334534}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/s0002-9149(99)80463-9","doi":"https://doi.org/10.1016/s0002-9149(99)80463-9","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0002-9149(99)80463-9","pdf_url":null,"source":{"id":"https://openalex.org/S185186944","display_name":"The American Journal of Cardiology","issn_l":"0002-9149","issn":["0002-9149","1879-1913"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-b","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The American Journal of Cardiology","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":null,"counts_by_year":[{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1}],"updated_date":"2026-11-06T12:05:46.655746","created_date":"2022-05-11T00:00:00"}