1Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts. Electronic address: vtorous@mgh.harvard.edu.
2Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts.
3Department of Pathology, Weill Cornell Medicine/New York Presbyterian Hospital, New York, New York.
4LabCorp Drug Development Cytopathology Department, Indianapolis, Indiana.
5Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts.
6Department of Pathology, Virginia Commonwealth University Health System, Richmond, Virginia.
7Department of Pathology, Jewish General Hospital and McGill University, Montréal, Québec, Canada.
8Department of Pathology, University of Florida College of Medicine-Jacksonville, Jacksonville, Florida.
9Department of Pathology, Mayo Clinic College of Medicine and Science, Jacksonville, Florida.