Metered-Dose Inhaler - an overview | ScienceDirect Topics
American Thoracic Society - A metered dose inhaler (MDI) is a small device that delivers a measured amount of medication to your lungs. Learn how to use your MDI with the ATS
Metered-Dose Inhalers | Obgyn Key
Use of Metered Dose Inhalers, Spacers, and Nebulizers: Practice Essentials, Overview, Preparation