title: Letter to the Editor.
authors.affiliation: Classified Specialist (Anaesthesiology and Pain Medicine), Command Hospital (Southern Command), Pune 411040, India.
authors.forename: Amit
authors.initials: A
authors.lastname: Dua
authors.affiliation: Resident (Anaesthesiology and Critical Care), Armed Forces Medical College, Pune 411040, India.
authors.forename: Mathangi
authors.initials: M
authors.lastname: Krishnakumar