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Ключевые слова:
ampule, background, biology, bottle, clinical, closeup, contagious, corona, coronavirus, covid, covid19, cure, disease, doctor, dose, drug, epidemic, health, hospital, human trial, immunisation, immunization, infection, infectious, injection, lab, laboratory, medical, medicine, needle, pandemic, patient, pharmaceutical, placebo, research, respiratory, sample, syringe, test, therapy, treatment, trial, vaccination, vaccine, vial, virology, virus, who, world health organization,