Published on in Vol 10, No 11 (2021): November
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/32285, first published
.
![Seroepidemiological Survey on the Impact of Smoking on SARS-CoV-2 Infection and COVID-19 Outcomes: Protocol for the Troina Study Seroepidemiological Survey on the Impact of Smoking on SARS-CoV-2 Infection and COVID-19 Outcomes: Protocol for the Troina Study](https://asset.jmir.pub/assets/6b11397099657a0b9a2927dacd8f51a3.png 480w,https://asset.jmir.pub/assets/6b11397099657a0b9a2927dacd8f51a3.png 960w,https://asset.jmir.pub/assets/6b11397099657a0b9a2927dacd8f51a3.png 1920w,https://asset.jmir.pub/assets/6b11397099657a0b9a2927dacd8f51a3.png 2500w)
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