(Q52244593)
Statements
Screening and early intervention for COPD. (English)
1 reference
G T Ferguson
1 reference
T L Petty
1 reference
1 April 1998
1 reference
33
1 reference
4
1 reference
67-72, 79-80, 83; discussion 83-4
1 reference
1 reference
1 reference
1 reference
1 reference