The present volume of the Boerhaave series intends to be a reflexion of our present knowledge in the expanding field of early diagnosis and prevention of inherited disorders. Early diagnosis can mean detection of a carrier state in one or both potential parents, detection of a specific inherited disease in a previously born child or during a pregnancy at risk, or during various stages of the life of an already born individual. The first chapters will discuss inherited disorders manifesting later in life. In Huntington's Chorea detection may be possible from the age of 20 or 30 onwards, while...