{"corpus_id":16906177,"paper_sha":"ad92d8658ca06f41c9621f31c0c0534ed57543a3","doi":"10.1007/s11882-011-0222-7","arxiv_id":null,"pmid":21927929,"pmcid":"3208109","mag_id":2114547039,"dblp_id":null,"acl_id":null,"title":"Reassessing the Evidence Hierarchy in Asthma: Evaluating Comparative Effectiveness","year":2011,"publication_date":"2011-09-17","venue":"Current Allergy and Asthma Reports","journal":{"name":"Current Allergy and Asthma Reports","pages":"526 - 538","volume":"11"},"journal_issn":null,"journal_title":null,"publication_types":["Review","JournalArticle"],"pubmed_pub_types":["Journal Article","Research Support, Non-U.S. Gov't","Review"],"s2_fields_of_study":["Medicine"],"reference_count":88,"citation_count":43,"influential_citation_count":1,"is_open_access":true,"arxiv_categories":null,"arxiv_license":null,"arxiv_journal_ref":null,"mesh_headings":[{"d":"Asthma","mj":false,"qs":[{"q":"drug therapy","mj":true,"ui":"Q000188"}],"ui":"D001249"},{"d":"Clinical Trials as Topic","mj":true,"ui":"D002986"},{"d":"Humans","mj":false,"ui":"D006801"},{"d":"Research Design","mj":false,"ui":"D012107"}],"chemicals":null,"comments_corrections":null,"source_flags":5,"s2_open_access_pdf_url":"https://link.springer.com/content/pdf/10.1007/s11882-011-0222-7.pdf","s2_open_access_landing_url":"https://www.semanticscholar.org/paper/ad92d8658ca06f41c9621f31c0c0534ed57543a3","s2_open_access_license":"CCBYNC","s2_open_access_status":"HYBRID","pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"Classical randomized controlled trials are the gold standard in medical evidence because of their high internal validity. 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