TY - JOUR T1 - Advances in respiratory medicine JF - Clinical Medicine JO - Clin Med SP - 442 LP - 445 DO - 10.7861/clinmedicine.7-5-442 VL - 7 IS - 5 AU - Anne E Tattersfield Y1 - 2007/10/01 UR - http://www.rcpjournals.org/content/7/5/442.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -