TY - JOUR T1 - Another day, another variation: When is enough enough? JF - Canadian Medical Association Journal JO - CMAJ SP - 61 LP - 62 VL - 158 IS - 1 AU - S. Lewis Y1 - 1998/01/13 UR - http://www.cmaj.ca/content/158/1/61.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -