| Phenotype details |
pPerinatal history unremarkable, mature normotrophic newborn (weight 4,000 g, length 53 cm, head circumference 36 cm); inconspicuous infant period; primary developmental disorder with absence of expressive language, moderate mental disability, discrete muscular hypotension, early childhood autism; nonspecific dysmorphic signs with short nose and anteverted nares, small chin, and infraorbital swelling |