Figure 1 of Ruberto, Mol Vis 2021; 27:107-116.

Figure 1. Structure of the pedigrees investigated in this study. Open symbols represent unaffected individuals (squares: males, circles: females), whereas filled symbols indicate patients. The central dot indicates the status of an unaffected carrier of mutation. +, wild-type allele; M1, chr19: g.54113356-54116922del; M2, g.54113882-54116394del.