WHAT SLEEPING PILL?
D035843:Biomedical Research; D004984:Ethchlorvynol; D006993:Hypnotics and Sedatives; D010919:Placebos
D006993:Hypnotics and Sedatives; D010919:Placebos; D004984:Ethchlorvynol
CLINICAL RESEARCH; ETHCHLORVYNOL; HYPNOTICS AND SEDATIVES; PLACEBOS