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Common cold - Symptoms and causes - Mayo Clinic
Common Cold: Symptoms, How to Treat, and More - Healthline
Common Cold: Symptoms, Cold vs. Flu, Treatment - Cleveland Clinic
Cold Versus Flu | CDC
Common cold - Wikipedia
Common cold - Diagnosis and treatment - Mayo Clinic
Common Cold: Symptoms, Treatment, and Recovery - Verywell …
Common Cold | Johns Hopkins Medicine
Cold and Flu (Influenza) Center: Symptoms, Treatments, Causes, …
COVID-19, cold, allergies and the flu: What are the differences?