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 K. Davison A1 J. P. Duffy A1 J. W. Osselton YR 1970 UL http://www.cmaj.ca/content/102/5/506.abstract