(Q50607430)
Statements
1 reference
Chronic Obstructive Pulmonary Disease Early Intervention Trial (Lung Health Study). Baseline characteristics of randomized participants. (English)
1 reference
Buist AS
1 reference
Connett JE
1 reference
Miller RD
1 reference
Kanner RE
1 reference
Owens GR
1 reference
Voelker HT
1 reference
1 June 1993
1 reference
1 reference
103
1 reference
1863-1872
1 reference
6
1 reference
Identifiers
1 reference