RT Journal Article SR Electronic T1 A comparison of sleep patterns in natural and mandrax- and tuinal-induced sleep JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 506 OP 508 VO 102 IS 5 A1 Davison, K. A1 Duffy, J. P. A1 Osselton, J. W. YR 1970 UL http://www.cmaj.ca/content/102/5/506.abstract