RT Journal Article SR Electronic T1 Armoured brain JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1145 OP 1145-a VO 169 IS 11 A1 Russell, Neville A1 Al Wohaibi, Mohammed A1 Al Ferayan, Ahmad YR 2003 UL http://www.cmaj.ca/content/169/11/1145.2.abstract