title: Can we ignore changing P wave polarity?
authors.affiliation: Department of Anesthesiology, Pt. BD Sharma Post Graduate Institute of Medical Sciences, Rohatk, India.
authors.forename: Swati
authors.initials: S
authors.lastname: Chhabra
authors.affiliation: Department of Anesthesiology, Pt. BD Sharma Post Graduate Institute of Medical Sciences, Rohatk, India.
authors.forename: Suresh Kumar
authors.initials: SK
authors.lastname: Singhal