Procalcitonin
Medicine
Internal medicine
C-reactive protein
Coronavirus disease 2019 (COVID-19)
Gastroenterology
Hazard ratio
Proportional hazards model
Retrospective cohort study
Severity of illness
Population
Cytokine storm
Interleukin 6
Disease
Cytokine
Inflammation
Sepsis
Confidence interval
Environmental health
Infectious disease (medical specialty)
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