. . . . . . . . . . "MSH: Any dummy medication or treatment. Although placebos originally were medicinal preparations having no specific pharmacological activity against a targeted condition, the concept has been extended to include treatments or procedures, especially those administered to control groups in clinical trials in order to provide baseline measurements for the experimental protocol.,CSP: pills, injections, or treatments missing the active component of interest, administered to experimental control groups to correct for nonspecific effects.,NCI: An inactive substance or treatment that looks the same as, and is given the same way as, an active drug or treatment being tested. The effects of the active drug or treatment are compared to the effects of the placebo.,PDQ: An inactive substance, treatment or procedure that is intended to provide baseline measurements for the experimental protocol of a clinical trial. Check for \"http://www.cancer.gov/Search/ClinicalTrialsLink.aspx?id=43469&idtype=1\" active clinical trials or \"" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .