TY - JOUR T1 - Computed tomography and the early diagnostic lumbar puncture JF - Canadian Medical Association Journal JO - CMAJ SP - 150 LP - 151 VL - 121 IS - 2 AU - R. P. Humphreys Y1 - 1979/07/21 UR - http://www.cmaj.ca/content/121/2/150.abstract ER -