← SearchRole of Endogenous Opioid System in the Placebo Effect$431,711R01FY2004ATNIHJohns Hopkins University, Baltimore MDInvestigatorsJames N CampbellLinked publications & trialsPaper 24102962Paper 21194997Paper 20488760Paper 20303665Paper 20188470Paper 19081190Paper 15024952View original record on NIH RePORTER →