RT Journal Article
SR Electronic
T1 AUTHORS' REPLY
JF Thorax
JO Thorax
FD BMJ Publishing Group Ltd and British Thoracic Society
SP 190
OP 191
DO 10.1136/thx.49.2.190-a
VO 49
IS 2
A1 C P Van Schayck
A1 C L A Van Herwaarden
YR 1994
UL http://thorax.bmj.com/content/49/2/190.2.abstract
AB