Taylor-Robinson David C, Schechter Michael S, Smyth Rosalind L
Department of Public Health and Policy, University of Liverpool, Liverpool, UK UCL Institute of Child Health, London, UK.
Department of Pediatrics, Division of Pulmonary Medicine, Virginia Commonwealth University, Children's Hospital of Richmond at VCU, Richmond, Virginia, USA.
Thorax. 2015 Mar;70(3):203-4. doi: 10.1136/thoraxjnl-2014-206393. Epub 2014 Dec 23.