%0 Journal Article %A M E Porteous %A J Burn %T Unknown syndrome. A possible new X linked retardation syndrome: dysmorphic facies, microcephaly, hypotonia, and small genitalia. %D 1990 %R 10.1136/jmg.27.5.339 %J Journal of Medical Genetics %P 339-340 %V 27 %N 5 %X The proband, the first child of unrelated parents, was noted in infancy to have microcephaly, developmental delay, dysmorphic facies, hypotonia, a small penis with cryptorchidism, and a fixed flexion deformity of his left index finger. His maternal uncle is severely retarded and has similar dysmorphic facies. %U https://jmg.bmj.com/content/jmedgenet/27/5/339.full.pdf