expected(1) HIV treatment(1) Gram-negative bacteria(1) Adverse drug reaction(1) clozapine/blood(1) off-label use(1) moderate-to-severe COVID-19(1) plasma concentrations(1) COVID-19(1) Efficacy(1) reported(1) suggested(1) antiviral activity(1) Pneumonia(1) in vivo(1) drug monitoring(1) Inflammatory(1) Previous studies(1) one patient(1) Inflammation(1) Occurrence(1) Lopinavir(1) treated(1) interquartile(1) Patient(1) beta-lactams(1) Adverse drug reactions(1) clozapine/pharmacokinetics(1) plasma concentration(1) dosage(1)