Formative resources Compumedics E Series Polysomnograph Philips Respironics Alice 6 Polysomnograph Philips Achieva 3T TX Magnetic Resonance Imaging Scanner Philips Achieva 3T TX Magnetic Resonance Imaging Scanner Philips Achieva 3T TX Magnetic Resonance Imaging Scanner Retinograph TOPCON TRC NW-400 Nihon Khoden Neurofax JE-921ª electroencephalography unit