Many years after losing her first child to Tay-Sachs, a genetic disease fatal by the fifth year of life, Kay J. Katz decided to share this information gently with her young grandchildren in a way t...voir plusMany years after losing her first child to Tay-Sachs, a genetic disease fatal by the fifth year of life, Kay J. Katz decided to share this information gently with her young grandchildren in a way they would understand.voir moins