Boussageon, Rémy The placebo effect: still under a cloud of confusion. Comments on the update by J.-M. Berthelot. [electronic resource] - Joint bone spine Jul 2011 - 433 p. digital Publication Type: Letter; Comment ISSN: 1778-7254 Standard No.: 10.1016/j.jbspin.2011.03.017 doi Subjects--Topical Terms: HumansRheumatic Diseases--physiopathology