RT Journal Article SR Electronic T1 Neuropsychological effects of marijuana JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 150 OP 156 VO 108 IS 2 A1 Klonoff, H. A1 Low, M. A1 Marcus, A. YR 1973 UL http://www.cmaj.ca/content/108/2/150.abstract