In another study, Webber et al. developed a CRISPR/Cas9 system to correct COL7A1 gene [261], which causes recessive dystrophic epidermolysis bullosa (RDEB), a disease that affects the skin and other organs, in which children that are born with this condition are referred to as “butterfly child” [262]. Here, COL7A1 is linked to recessive dystrophic epidermolysis bullosa.