title: Airways reactivity and functional deterioration in relatives of COPD patients.
mesh_terms: D000328:Adult; D005190:Family; D005541:Forced Expiratory Volume; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000235:genetics*; D008297:Male; D008688:Methacholine Compounds; D014797:Vital Capacity
chemical_list: D008688:Methacholine Compounds