Hopkinson, N., & et al. (2021). Current smoking and COVID-19 risk: Results from a population symptom app in over 2.4 million people.
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Dyfyniad Arddull Chicago
Hopkinson, N.S, and et al. Current Smoking and COVID-19 Risk: Results from a Population Symptom App in over 2.4 Million People. 2021.
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Dyfyniad MLA
Hopkinson, N.S, and et al. Current Smoking and COVID-19 Risk: Results from a Population Symptom App in over 2.4 Million People. 2021.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.