Carboplatin and Paclitaxel With or Without Atezolizumab Before Surgery in Treating Patients With Newly Diagnosed, Stage II-III Triple-Negative Breast Cancer

University of Pittsburgh Cancer Institute (UPCI), Pittsburgh

Johns Hopkins University/Sidney Kimmel Cancer Center, Baltimore

UNC Lineberger Comprehensive Cancer Center, Chapel Hill

Duke University Medical Center, Durham

Ohio State University Comprehensive Cancer Center, Columbus

Washington University School of Medicine, St Louis

Siteman Cancer Center-South County, St Louis

Siteman Cancer Center at Christian Hospital, St Louis

Siteman Cancer Center at West County Hospital, Creve Coeur

Siteman Cancer Center at Saint Peters Hospital, City of Saint Peters

Mayo Clinic Hospital in Arizona, Phoenix

Mayo Clinic in Arizona, Scottsdale

University of California Davis Comprehensive Cancer Center, Sacramento

Mayo Clinic in Florida, Jacksonville