1. Healthcare cost and utilization project (HCUP),2012
2. Hospitalization for Total Hip Replacement Among Inpatients Aged 45 and Over: United States, 2000–2010 https://www.cdc.gov/nchs/products/databriefs/db186.htm. Access date February 5, 2021.
3. Diagnostic and statistical manual of mental disorders,2013
4. Delirium in older persons: evaluation and management;Kalish;Am Fam Physician,2014
5. SEDCOM (safety and efficacy of dexmedetomidine compared with midazolam) study group. delirium duration and mortality in lightly sedated, mechanically ventilated intensive care patients;Shehabi;Crit Care Med,2010