Fig. 1From: CFTR heterozygosity in severe asthma with recurrent airway infections: a retrospective reviewNumber of infective exacerbations in the year before and after hypertonic saline initiation in patients with physician-diagnosed asthma (n = 29). Each dot represents the number of yearly exacerbations before and after HTS. Each line represents the trend. Several subjects have similar numbers of exacerbations, therefore 29 patients generated 16 trendsBack to article page