Corporate Derbyshire; North Derbyshire Health Authority; National Health Service: Trent Regional Health Authority - Derbyshire Area Health Authority; 1974-1996; health authority DS/UK/4373 North Derbyshire Health Authority National Health Service: Trent Regional Health Authority - Derbyshire Area Health Authority 1974-1996 health authority Derbyshire Yes DERBYSHIRE\a7005277 20/04/2023 DERBYSHIRE\a7005277 20/04/2023 5661e145-0ee7-4127-8ae6-8788682794cf