RT Journal Article SR Electronic T1 A rational approach to e-cigarettes - challenging ERS policy on tobacco harm reduction JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 2000166 DO 10.1183/13993003.00166-2020 A1 John Britton A1 Jacob George A1 Linda Bauld A1 Sanjay Agrawal A1 John Moxham A1 Deborah Arnott A1 Ann McNeill A1 Nicholas S. Hopkinson YR 2020 UL http://erj.ersjournals.com/content/early/2020/02/20/13993003.00166-2020.abstract AB