Bush Andrew, Frey Urs
From the Department of Pediatric Respiratory Medicine, Royal Brompton Hospital, London (A.B.); and the Department of Pediatrics, University Children's Hospital Basel, University of Basel, Basel, Switzerland (U.F.).
N Engl J Med. 2016 Sep 1;375(9):889-91. doi: 10.1056/NEJMe1608508.