Morning SicknessMeta-Analysis as TopicRandomized Controlled Trials as TopicClinical Trials as TopicMethylmethacrylatesHomoserine O-SuccinyltransferaseMethacrylatesResearch DesignBoron CompoundsClinical Trials, Phase III as TopicCatecholsDouble-Blind MethodTreatment OutcomeClinical Trials, Phase II as TopicClinical Trials, Phase I as TopicControlled Clinical Trials as TopicCatechol 2,3-DioxygenaseRhodopsinPeriodicals as TopicTolueneResin CementsCongresses as TopicAcrylic ResinsXylenesChlorobenzoatesTime Factors