title: Comment on "Medical use of all high activity sources should be eliminated for security concerns" [Med. Phys. 42, 6773-6775 (2015)].
authors.affiliation: Department of Radiation Oncology, UCLA Medical Center, Los Angeles, California 90095-6951.
authors.forename: J Daniel
authors.initials: JD
authors.lastname: Pennington
authors.affiliation: Department of Radiation Oncology, UCLA Medical Center, Los Angeles, California 90095-6951.
authors.forename: Sang-June
authors.initials: SJ
authors.lastname: Park
authors.affiliation: Department of Radiation Oncology, UCLA Medical Center, Los Angeles, California 90095-6951.
authors.forename: Percy P
authors.initials: PP
authors.lastname: Lee
authors.affiliation: Department of Radiation Oncology, UCLA Medical Center, Los Angeles, California 90095-6951.
authors.forename: D Jeffrey
authors.initials: DJ
authors.lastname: Demanes
mesh_terms: D001918:Brachytherapy; D006801:Humans