title: Ultrasound competency and practice: what's in a number?
authors.affiliation: Department of Emergency Medicine, Temple University School of Medicine, Philadelphia, PA. tcostant@temple.edu.
authors.forename: Thomas
authors.initials: T
authors.lastname: Costantino
authors.affiliation: Department of Emergency Medicine, Carilion Clinic, Roanoke, VA.
authors.forename: John
authors.initials: J
authors.lastname: Burton
authors.affiliation: Department of Emergency Medicine, Carolinas Medical Center, Charlotte, NC.
authors.forename: Vivek
authors.initials: V
authors.lastname: Tayal