Persistence and compliance.
Anthonisen
Nick R
NR
D000280:Administration, Inhalation; D006801:Humans; D010349:Patient Compliance / Q000706:statistics & numerical data*; D029424:Pulmonary Disease, Chronic Obstructive / Q000188:drug therapy*; D013256:Steroids / Q000008:administration & dosage*; D016896:Treatment Outcome
D013256:Steroids