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Retrogradely labeled preganglionic motoneurons in the Edinger–Westphal nucleus of the macaque monkey. Following a ciliary ganglion injection, labeled cells were observed throughout the ipsilateral EWpg (b–d) and extended rostrally into the AM (a). Most displayed multipolar morphology. Note that somatic motoneuron labeling was present, but is not illustrated here. Insets show section illustrated and region around III
