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You've probably never heard of this rare disease. Coffin-Siris syndrome affects fewer than 200 people worldwide. It causes intellectual disability, developmental delay and vision problems. It was not until 2012 that the genes responsible were identified. Coffin-Siris syndrome can be linked to mutations in 11 different genes. Laura, 4, has a severe form of this pathology. Find more information about your health on www.allodocteurs.fr For more videos, subscribe: / @allodocteurs