References1. GOLD (Global Initiative for Chronic Obstructive Lung Disease) Patient Guide 2019
2. Living Well with COPD Patient Education Guide PDF: https://foundation.chestnet.org/wp-content/uploads/2020/05/Living-Well-With-COPD.pdf
Data reused with permission from American College of Chest Physicians “Living Well with COPD” Patient Education Guideline, pages 30-31