TY - JOUR T1 - Too many serpents spoil the symbol JF - Canadian Medical Association Journal JO - CMAJ SP - 1299 LP - 1300 VL - 165 IS - 10 AU - H.J. Scott Y1 - 2001/11/13 UR - http://www.cmaj.ca/content/165/10/1299.3.abstract ER -