title: Neurosurgery in patients over age 65.
authors.forename: L F
authors.initials: LF
authors.lastname: Hirsh
authors.forename: B
authors.initials: B
authors.lastname: Dalton
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D009493:Neurosurgery / Q000706:statistics & numerical data*; D010414:Pennsylvania; D012189:Retrospective Studies