title: Authors' reply.
authors: McMaster University, Department of Diagnostic Radiology, 1280 Main Street West, Hamilton, ON 18S 418, Canada. Electronic address: sean.kennedy@medportal.ca.
authors: Sean A
authors: SA
authors: Kennedy
authors: McMaster University, Department of Diagnostic Radiology, 1280 Main Street West, Hamilton, ON 18S 418, Canada.
authors: Mehran
authors: M
authors: Midia
mesh_terms: D005260:Female; D006291:Health Policy; D006300:Health Services Misuse / Q000706:statistics & numerical data*; D006801:Humans; D017116:Low Back Pain / Q000175:diagnosis*; D008161:Lumbosacral Region; D008279:Magnetic Resonance Imaging / Q000706:statistics & numerical data*; D008297:Male; D012017:Referral and Consultation / Q000706:statistics & numerical data*