RT Journal Article SR Electronic T1 This again (or insomnia) JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1093 OP E1093 DO 10.1503/cmaj.110752 VO 183 IS 14 A1 Michael Rowe YR 2011 UL http://www.cmaj.ca/content/183/14/E1093.abstract