RT Journal Article SR Electronic T1 Cruel and usual punishment: solitary confinement in Canadian prisons JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1345 OP 1345 DO 10.1503/cmaj.141419 VO 186 IS 18 A1 Kelsall, Diane YR 2014 UL http://www.cmaj.ca/content/186/18/1345.abstract AB