1. Gottstein U: Pharmacological studies of total cerebral blood flow in man with comments of the possibility of improving regional cerebral blood flow by drugs. Acta Neurol Scand (suppl 14 ) 41: 136–141, 1965.
2. McHenry LC, Jaffe ME, Kawamure J, Goldberg HJ: The effect of papaverine on regional cerebral blood flow in focal vascular disease of the brain. N Engl J Med 282: 1167–1170, 1970.
3. Skinhoj E, Paulson OB: Carbon dioxide and cerebral circulatory control. Arch Neural 20: 249–252, 1969.
4. Jayne HW, Scheinberg P, Rich M, Belle MS: The effect of intravenous papaverine hydrochloride on the cerebral circulation. J Clin Invest 31: 101–114, 1952.
5. Saratikov AS, Usov LA, Gold LI: Papaverine and nospanum hydrochloricum action on the blood supply to the brain. Pharmakol Toksikol32: 152–154, 1969.