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Ключевые слова:
bacteria, blue, breath, cardiology, care, checkup, child, children, concept, contagion, coronavirus, cough, covid19, diagnosis, diagnostic, disease, disposable, epidemic, equipment, examination, fever, flu, hand, health, healthcare, heart, hold, illness, infection, influenza, little, mask, medic, medical mask, medicine, ncov2019, outbreak, pandemic, pneumonia, prevention, protection, protective, quarantine, respiratory, stethoscope, treatment, vaccine, virus,