RT Journal Article
SR Electronic
T1 Validated questionnaires should not be modified
JF European Respiratory Journal
JO Eur Respir J
FD European Respiratory Society
SP 1015
OP 1017
DO 10.1183/09031936.00110209
VO 34
IS 5
A1 Juniper, E. F.
YR 2009
UL http://erj.ersjournals.com/content/34/5/1015.abstract
AB