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Clinical trials placebo effect
Ethical Issues in Social Inquiry: the Enemy Within? Roger Penn and Keith Soothill Lancaster University.
Clinical Trials of Traditional Herbal Medicines In India Y.K.Gupta Professor & Head, Department of Pharmacology, All India Institute of Medical Sciences,
The investigator passively observes and records information on observational units. Method often used to see how things behave in nature. Still.
Ethical Issues in Social Inquiry: the Enemy Within?
Clinical Trials of Traditional Herbal Medicines In India