Fig. 3From: Clinical expression of cystic fibrosis in a large cohort of Italian siblingsCurrent FEV1% of predicted for age in 15 pairs of siblings discordant for cystic fibrosis related diabetes (CFRD). a sibling with CFRD; b sibling free from CFRD. We reported as current FEV1 the last value of the younger sibling and that of the older sibling at the same ageBack to article page