Clinical consult: developmental delay/fragile X syndrome.

  title={Clinical consult: developmental delay/fragile X syndrome.},
  author={Georgia L. Wiesner and Suzanne B. Cassidy and Sarah J Grimes and Anne L. Matthews and Louise S. Acheson},
  journal={Primary care},
  volume={31 3},
  pages={621-5, x}
Fragile X syndrome is an X-linked disorder characterized primarily by speech delay and moderate mental retardation. The incidence of fragile X syndrome is estimated at 1/4000-1/6000 males and half that for females. This article presents a case study of fragile X syndrome, describing the genetics and inheritance, disease characteristics,natural history, diagnosis, differential diagnosis, and management.