RT Journal Article SR Electronic T1 No regulatory double standard for natural health products JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 2079 OP 2079 DO 10.1503/cmaj.111739 VO 183 IS 18 A1 Noni E. MacDonald A1 Stuart MacLeod A1 Matthew B. Stanbrook A1 Paul C. Hébert A1 with editorial advisory team members A1 Ken Flegel A1 Daniel Rosenfield YR 2011 UL http://www.cmaj.ca/content/183/18/2079.abstract AB