They study and treat diseases of the central nervous system (the brain and the spinal cord) and the peripheral nervous system (the nerves from the spinal cord to the muscles and the sensory nerves).
(They; study; ) (They; treat; diseases of the central nervous system (the brain and the spinal cord) and the peripheral nervous system)
They They
study treat
diseases of the central nervous system (the brain and the spinal cord) and the peripheral nervous system