title: Does prophylactic cranial irradiation reduce the incidence of brain metastases in extensive small-cell lung cancer?
authors.affiliation: Radiation Oncology, Harvard Medical School, Massachusetts General Hospital, Boston, MA 02114, USA.
authors.forename: Lia M
authors.initials: LM
authors.lastname: Halasz
authors.forename: Noah C
authors.initials: NC
authors.lastname: Choi