title: Pulmonary outpatient rehabilitation: a four-year follow-up.
mesh_terms: D003365:Costs and Cost Analysis; D005245:Fee Schedules; D005500:Follow-Up Studies; D006801:Humans; D008171:Lung Diseases / Q000401:mortality / Q000534:rehabilitation*; D009820:Ohio; D010044:Outpatient Clinics, Hospital; D012017:Referral and Consultation