title: Editorial.
authors.affiliation: Deputy Editor in Chief, Department of Medical Physics, School of Medicine, Shiraz University of Medical Science, Shiraz, Iran.
authors.forename: A R
authors.initials: AR
authors.lastname: Mehdizadeh
authors.affiliation: Medical Physics and Medical Engineering Department, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
authors.forename: S M J
authors.initials: SM
authors.lastname: Mortazavi