Cita APA (7th ed.)
Hopkinson, N., & et al. (2021). Current smoking and COVID-19 risk: Results from a population symptom app in over 2.4 million people.
Cita Chicago (17th ed.)
Hopkinson, N.S, i et al. Current Smoking and COVID-19 Risk: Results from a Population Symptom App in over 2.4 Million People. 2021.
Cita MLA (9th ed.)
Hopkinson, N.S, i et al. Current Smoking and COVID-19 Risk: Results from a Population Symptom App in over 2.4 Million People. 2021.
Atenció: Aquestes cites poden no estar 100% correctes.