RT Journal Article SR Electronic T1 High altitude and asthma: beyond house dust mites JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1320 OP 1321 DO 10.1183/09031936.00096712 VO 40 IS 6 A1 Denis Charpin YR 2012 UL http://erj.ersjournals.com/content/40/6/1320.abstract AB