1 Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
2 Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University Hospital, Philadelphia, PA, USA.
3 Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA.
4 Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.
5 Department of Laboratory Medicine, Yale School of Medicine, New Haven, CT, USA.
6 Department of Pathology, University of Virginia School of Medicine, Charlottesville, VA, USA.
7 Department of Pathology and Laboratory Medicine, UNC School of Medicine, Chapel Hill, NC, USA.
8 Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
9 Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
10 Department of Pathology, City of Hope National Medical Center, Irvine, CA, USA.
11 Department of Pathology, Microbiology & Immunology, Vanderbilt University Medical Center, Nashville, TN, USA.
12 Department of Pathology, University of Michigan, Ann Arbor, MI, USA.
13 Division of Hematology, Duke University Medical Center, Durham, NC, USA.
14 Department of Pathology, Baylor College of Medicine, Houston, TX, USA.
15 Department of Pathology, University of Alabama at Birmingham, Birmingham, AL, USA.
16 Department of Pathology, University of California San Diego, La Jolla, CA, USA.
17 Center for Transfusion Medicine and Cellular Therapies, Department of Pathology and Laboratory Medicine, Emory University School of Medicine, and Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, GA, USA.
18 Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.