Figure 1
From: Extreme intra-familial variability of congenital central hypoventilation syndrome: a case series
Partial pedigree of the family with congenital central hypoventilation syndrome. Squares indicate males and circles indicate females. Filled symbols identify individuals with confirmed and/or reported signs and symptoms of congenital central hypoventilation syndrome. The proband is indicated by the arrow. Confirmed PHOX2B mutation carriers are identified by an asterisk. A dagger denotes that the individual was not assessed.