title: Optimizing ultrasound-guided biopsy of musculoskeletal masses by application of an ultrasound contrast agent.
authors.affiliation: Department of Radiology, Medical University Innsbruck, Innsbruck, Austria. alexander.loizides@i-med.ac.at
authors.forename: A
authors.initials: A
authors.lastname: Loizides
authors.forename: G
authors.initials: G
authors.lastname: Widmann
authors.forename: T
authors.initials: T
authors.lastname: Freuis
authors.forename: S
authors.initials: S
authors.lastname: Peer
authors.forename: H
authors.initials: H
authors.lastname: Gruber