?:authorAffiliation
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[\'Harvard Medical School, Boston, Massachusetts.\', \'Department of Pediatric Allergy and Immunology, Stanford University, Stanford, California.\', \'Division of Cardiology, Massachusetts General Hospital for Children, Boston, Massachusetts.\', \'Department of Stem Cell Transplantation and Regenerative Medicine, Stanford University, Stanford, California.\', \'Division of Pulmonary, Massachusetts General Hospital for Children, Boston, Massachusetts.\']
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