title: Intensive Care Unit Psychosis-sundowning: A Challenging Phenomenon.
authors.affiliation: Department of Critical Care Medicine, Shifa College of Medicine, Islamabad, Pakistan.
authors.forename: Salman
authors.initials: S
authors.lastname: Assad
authors.affiliation: Department of Critical Care Medicine, Shifa College of Medicine, Islamabad, Pakistan.
authors.forename: Usman
authors.initials: U
authors.lastname: Ghani
authors.affiliation: Department of Critical Care Medicine, Shifa College of Medicine, Islamabad, Pakistan.
authors.forename: Touqeer
authors.initials: T
authors.lastname: Sulehria
authors.affiliation: Department of Critical Care Medicine, Shifa College of Medicine, Islamabad, Pakistan.
authors.forename: Taimur
authors.initials: T
authors.lastname: Mansoor
authors.affiliation: Department of Medicine, Lahore Medical and Dental College, Lahore, Pakistan.
authors.forename: Muhammad Atif
authors.initials: MA
authors.lastname: Ameer