books.google.com - Includes numerous entries that describe the condition, its prognosis, prevalence, mode of inheritance and the availability of carrier screening and prenatal diagnosis. Entries for subjects and terminology important to genetic disorders and congenital anomalies are also included....http://books.google.com/books/about/The_Encyclopedia_of_Genetic_Disorders_an.html?id=kXaMjwItP0oC&utm_source=gb-gplus-shareThe Encyclopedia of Genetic Disorders and Birth Defects, Third Edition