1 Yale University School of Medicine, Departments of Laboratory Medicine and Pediatrics, 330 Cedar Street, Clinic Building 405, PO Box 208035, New Haven, CT 06520-8035, USA. Electronic address: jeanne.hendrickson@yale.edu.
2 VA Connecticut Healthcare System, Pathology and Laboratory Medicine Service, Yale University School of Medicine, Department of Laboratory Medicine, 55 Park Street, Room 435B, New Haven, CT 06519, USA. Electronic address: christopher.tormey@yale.edu.