Nemours Children's Health System and the Clinic for Special Children in Lancaster County signed a five-year agreement to collaborate on the care of children with rare genetic disorders, the two tax-exempt organizations announced.

As part of the arrangement, the Clinic for Special Children will help Nemours develop medical services for the Old Order Amish community near Dover, Del.

The clinic, near Strasburg, Pa., was founded in 1989 to treat Old Order Amish and Mennonite children with genetic disorders.