The following chart is from Resource (1), the GOLD 2017 COPD Guidelines [Resource (1)]:
Resources (1)
(1) The Global Initiative For Chronic Obstructive Lung Disease has published GOLD 2017 Global Strategy for the Diagnosis, Management and Prevention of COPD[Download link to PDF] and the POCKET GUIDE TO COPD DIAGNOSIS, MANAGEMENT, AND PREVENTION: A Guide for Health Care Professionals 2017 REPORT [Link is to the PDF]