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[null,"1.","Record Nr.",null,"UNINA9910717172503321"]
[null,null,"Titolo",null,"Exposure notification : benefits and challenges of smartphone applications to augment contact tracing: report to congressional addressees"]
[null,null,"Pubbl/distr/stampa",null,"Washington, DC : , : United States Government Accountability Office, , 2021"]
[null,null,"Descrizione fisica",null,"1 online resource (iii, 54 pages) : color illustrations, color map"]
[null,null,"Soggetti",null,"COVID-19 (Disease) - United States - Prevention"]
[{"$nulls":4},"COVID-19 (Disease) - Transmission - United States"]
[{"$nulls":4},"Contact tracing (Epidemiology) - United States"]
[{"$nulls":4},"Public health surveillance - United States"]
[{"$nulls":4},"Smartphones - United States"]
[{"$nulls":4},"Mobile apps - United States"]
[{"$nulls":4},"Electronic surveillance"]
[{"$nulls":4},"United States"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","\"September 2021.\""]
[{"$nulls":4},"\"GAO-21-104622.\""]
[null,null,null,"Nota di bibliografia","Includes bibliographical references."]