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The protein tracer, horseradish peroxidase (HRP), was infused into the lateral cerebral ventricles or subarachnoid space of anesthetized cats and dogs after insertion of a cisternal cannula to permit(More)
A new method is described for morphological studies of blood vessels and related cellular elements in the mammalian central nervous system (CNS). The tracer protein, horseradish peroxidase (HRP), in(More)