Examining Initial Sleep Onset in Primary Insomnia: A Case-Control Study Using 4-Second Epochs Examining Initial Sleep Onset in Primary Insomnia: A Case-Control Study Using 4-Second Epochs Download Evaluation of the Efficacy and Safety of Ramelteon in Subjects with Chronic Insomnia Exploratory Polysomnographic Evaluation of Pregabalin on Sleep Disturbance in Patients with Epilepsy