More than 30,000 physicians, research scientists, and nurses and other allied healthcare professionals (32 percent of whom work outside
the United States).
ATS Assemblies The interests of members are represented by the Society's 14 specialty-specific assemblies and 2 sections.
Chapters and activities With the overarching goal of advancing the Society's mission, each chapter represents a state or other geographical area and includes, in its membership ATS members. The ATS also works to engage its members around the globe.
Past Presidents ==Publications and educational activities==