1. Lauren V. Ackerman Laboratory of Surgical Pathology, St. Louis Children’s Hospital, Washington University Medical Center, St. Louis, MO, USA
2. International Pleuropulmonary Blastoma/DICER1 Registry, Cancer and Blood Disorders, Children’s Minnesota, Minneapolis, MN, USA
3. Department of Pathology, Center for Cancer and Immunology Research, Children’s National Medical Center, Washington, DC, USA