title: Ultrasound a new paradigm in regional anesthesia and pain management.
authors.affiliation: Department of Anesthesiology, Hazrat Rasul Medical complex, Iran University of Medical Sciences (IUMS), Tehran, Iran.
authors.forename: Poupak
authors.initials: P
authors.lastname: Rahimzadeh
authors.forename: Seyed Hamid Reza
authors.initials: SH
authors.lastname: Faiz
keywords: Anesthesia, Conduction; Pain Management; Ultrasound