injection of large amounts of a mixture of horseradish peroxidase and wheat germ agglutinin-horseradish peroxidase conjugate into the upper cervical segments of the spinal cord in the japanese monkey ( macaca fuscata ) led to the retrograde labeling of a small number of neuronal cell bodies within the rostral part of the subthalamic nucleus of luys .
C0019941
horseradish peroxidase
C0078473
wheat germ