Figure 1.

Cardinal symptoms of COPD and OSA.
Note: The common symptoms of COPD and OSA are noted with potential overlapping symptoms highlighted in the center.
Abbreviations: COPD, chronic obstructive pulmonary disease; OSA, obstructive sleep apnea.

Cardinal symptoms of COPD and OSA.
Note: The common symptoms of COPD and OSA are noted with potential overlapping symptoms highlighted in the center.
Abbreviations: COPD, chronic obstructive pulmonary disease; OSA, obstructive sleep apnea.