44 Medical screening services in the field of sleep apnea; Monitoring of patients, namely, health screening services in the field of sleep apnea; Conducting sleep studies for medical diagnostic or treatment purposes; Rental of respiratory masks for artificial respiration; Conducting sleep studies for medical diagnostic or treatment purposes, namely, providing a database in the field of sleep apnea and home sleep testing diagnostic information based on collected data and information all for treatment and diagnostic purposes; Medical screening services in the field of sleep apnea, namely, treatment of patients with snoring and sleep apnea disorders; Medical screening services in the field of sleep apnea, namely, providing information in the field of sleep apnea and related sleep disorders for doctors and patients; Rental of respiratory masks for medical purposes; Conducting sleep studies for medical diagnostic or treatment purposes, namely, medical analysis of sleep data in the nature of medical analysis services relating to the treatment of persons; Monitoring of patients, namely, analysis of sleep data for the purpose of assisting in the diagnosis of sleep apnea and sleep disorders; Conducting sleep studies for medical diagnostic or treatment purposes, namely, providing automated analysis relating to data in the field of sleep patterns and sleep apnea for the purpose of assisting in the diagnosis of sleep apnea and sleep disorders