A new chromosome 17q21.31 microdeletion syndrome associated with a common inversion polymorphism. by Koolen, D, Vissers, L, Pfundt, R, de Leeuw, N, Knight, S, Regan, R, Kooy, R, Reyniers, E, Romano, C, Fichera, M, Schinzel, A, Baumer, A, Anderlid, B, Schoumans, J, Knoers, N, van Kessel, A, Sistermans, E, Veltman, J, Brunner, H, de Vries, B