Placebo. Hands holding two identical capsules, one of which is medically inactive (a placebo) while the other is a drug or medicine. In clincal drug trials a placebo is used as a control. 'Double-blind' trials require that neither the patient nor the experimenter knows which is the control and which is the drug, in order to reduce bias.
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Details
Creative#:
TOP01431202
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
N/A
Right to Privacy:
No
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