Greenberg dysplasia (HEM) and lethal X linked dominant Conradi-Hünermann chondrodysplasia punctata (CDPX2): presentation of two cases with overlapping phenotype. Issue 12 (18th December 2003) - Offiah, A C; Mansour, S; Jeffrey, I; Nash, R; Whittock, N; Pyper, R; Bewley, S; Clayton, P T; Hall, C M