My edit: Additional "S8" to all my references to ResMed machines in this old publish, since the definition of hypopnea was altered by ResMed in the later on S9 series devices. g = گرم / mg = میلی گرم / µg یا mcg = میکروگرم / IU = واحد https://alexandreu641ksb8.wikimillions.com/user