title: Spirometry in the diagnosis of small airways obstruction.
authors.forename: R
authors.initials: R
authors.lastname: Theerthakarai
authors.forename: M A
authors.initials: MA
authors.lastname: Khan
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000175:diagnosis*; D008176:Lung Volume Measurements; D012680:Sensitivity and Specificity; D013147:Spirometry