In this Behavioral Sciences and Health Services Research podcast, Dr. Henry Brems (fellow, Johns Hopkins University) interviews Dr. Sanja Stanojevic, who is the current chair of the ATS of Pulmonary Function Testing committee and an Associate Professor in Department of Community Health and Epidemiology at Dalhousie University. They discuss GLI-Global -- the reference equation recently recommended for spirometry interpretation by the ATS -- including how it was developed, what it means for spirometry interpretation, and how it may impact racial disparities in respiratory disease.