|Coronavirus disease 2019 COVID-19 : Frequently asked questions||Similarities and differences between flu and COVID-19|
|Centers for Disease Control and Prevention||The common cold in adults: Treatment and prevention|
Anosmia in COVID-19: Underlying mechanisms and assessment of an olfactory route to brain infection.
|Marshall WF III expert opinion||Key facts about influenza flu|
|Allergic rhinitis: Clinical manifestations, epidemiology, and diagnosis||Social distancing against COVID-19: Implication for the control of influenza|
Journal of Korean Medical Science.25