{"id":"https://openalex.org/C2778190748","wikidata":"https://www.wikidata.org/wiki/Q7907956","display_name":"Vaccine trial","level":3,"description":"clinical trial that aims at establishing the safety and efficacy of a vaccine prior to it being licensed","works_count":11906,"cited_by_count":222655,"summary_stats":null,"ids":{"openalex":"https://openalex.org/C2778190748","wikidata":"https://www.wikidata.org/wiki/Q7907956","mag":null,"wikipedia":"https://en.wikipedia.org/wiki/vaccine_trial","umls_aui":null,"umls_cui":null},"image_url":"https://upload.wikimedia.org/wikipedia/commons/d/df/Covid_vaccine_clinical_trial%2C_Padjajaran_University_%28cropped%29.jpg","image_thumbnail_url":"https://upload.wikimedia.org/wikipedia/commons/thumb/d/df/Covid_vaccine_clinical_trial%2C_Padjajaran_University_%28cropped%29.jpg/100px-Covid_vaccine_clinical_trial%2C_Padjajaran_University_%28cropped%29.jpg","international":{},"ancestors":null,"related_concepts":null,"counts_by_year":null,"works_api_url":"https://api.openalex.org/works?filter=concepts.id:2778190748","updated_date":"2026-09-04T04:03:16","created_date":"2018-01-05T00:00:00"}
