biostudies-literatureUnknown22(9)Yach DFoundation for a Smoke-Free WorldNicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco1671-1672https://www.ebi.ac.uk/biostudies/studies/S-EPMC7313787biostudies-literatureTobacco Use Patterns in Five Countries During the COVID-19 Lockdown.PMC7313787Yach DfalseTobacco Use Patterns in Five Countries During the COVID-19 Lockdown.2020-01-01T00:00:00Z2020 Aug2025-04-04T13:42:53.863Z2025-04-04T13:42:53.863ZS-EPMC73137873245983710.1093/ntr/ntaa097