title: Managing patients with difficult asthma.
authors.affiliation: Aberdeen Royal Infirmary.
authors.forename: Douglas
authors.initials: D
authors.lastname: Graham
mesh_terms: D001249:Asthma / Q000150:complications / Q000175:diagnosis / Q000628:therapy*; D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive / Q000150:complications / Q000628:therapy; D012017:Referral and Consultation; D012907:Smoking / Q000009:adverse effects