RT Journal Article SR Electronic T1 Patient charters all buzz and no bite, advocates say JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1406 OP 1408 DO 10.1503/cmaj.109-3340 VO 182 IS 13 A1 Lauren Vogel YR 2010 UL http://www.cmaj.ca/content/182/13/1406.abstract