Chloral HydrateEthylene ChlorohydrinHistory, 19th CenturyHydroxyzineHistory, 17th CenturyHistory, 18th CenturyHistory, 20th CenturyHistory, 15th CenturyHistory, 16th CenturyHypnotics and SedativesTrichloroethyleneGlutethimideConscious SedationCryingAnesthesia, DentalDental Care for ChildrenTrichloroacetic AcidHistory, MedievalPentobarbitalTh2 CellsTh1 CellsUrethane