A loss of function mutation in the COL9A2 gene causes autosomal recessive Stickler syndrome.
Baker S, Booth C, Fillman C, Shapiro M, Blair MP, Hyland JC, Ala-Kokko L. A loss of function mutation in the COL9A2 gene causes autosomal recessive Stickler syndrome. . 2011 Jul; 155A(7):1668-72.