title: Subspecialization in radiation oncology: impact of stereotactic radiosurgery.
authors.affiliation: Department of Radiation Oncology, Harvard Medical School, Boston, MA.
authors.forename: J S
authors.initials: JS
authors.lastname: Loeffler
authors.forename: D A
authors.initials: DA
authors.lastname: Larson
mesh_terms: D006801:Humans; D008495:Medical Oncology / Q000193:education*; D016634:Radiosurgery; D013038:Specialization; D013238:Stereotaxic Techniques; D014481:United States