| Literature DB >> 32990312 |
Tiantian Wang1, Fei Jia2.
Abstract
Entities:
Keywords: COVID-19; epidemics; health QR code; older people; social isolation
Year: 2021 PMID: 32990312 PMCID: PMC7543282 DOI: 10.1093/ageing/afaa222
Source DB: PubMed Journal: Age Ageing ISSN: 0002-0729 Impact factor: 10.668