Recessive mutations in TSPAN12 cause retinal dysplasia and severe familial exudative vitreoretinopathy (FEVR). by Poulter, J, Davidson, A, Ali, M, Gilmour, D, Parry, D, Mintz-Hittner, H, Carr, I, Bottomley, H, Long, V, Downey, L, Sergouniotis, P, Wright, G, Maclaren, R, Moore, A, Webster, A, Inglehearn, C, Toomes, C