Brivudine(2) Breast cancer(2) dihydropyrimidine dehydrogenase(2) SARS-CoV-2(2) mucositis(2) Remdesivir(2) Drug interactions(2) pancytopenia.(2) capecitabine(2) persistent infection(1) hepatitis B(1) antiviral drugs(1) Hydroxychloroquine(1) elderly patients(1) COVID-19(1) Transmission(1) congenital cytomegalovirus(1) cholestasis(1) antiHer2 agents(1) oncology(1) tenofovir(1) flu(1) Chemotherapy(1) antiviral agent(1) dog(1) HIV(1) Azithromycin(1) COVID-19 pandemic(1) liver failure(1) endocrine therapy.(1)