RT Journal Article SR Electronic T1 Pattern of patient referrals to a tertiary neurosurgery center in the central region of Saudi Arabia JF Neurosciences Journal JO Neurosciences (Riyadh) FD Prince Sultan Military Medical City SP 271 OP 273 VO 17 IS 3 A1 Amro F. Al-Habib A1 Zain A. Jamjoom A1 Essam A. Elgamal YR 2012 UL http://nsj.org.sa/content/17/3/271.abstract AB