TY - JOUR T1 - The placebo enigma revisited JF - Clinical Medicine JO - Clin Med SP - 340 LP - 343 DO - 10.7861/clinmedicine.11-4-340 VL - 11 IS - 4 AU - JMS Pearce Y1 - 2011/08/01 UR - http://www.rcpjournals.org/content/11/4/340.abstract ER -