SymonL. Observations on the leptomeningeal collateral circulation in dogs. J Physiol1960; 154: 1–14.2.
2.
SymonL. Studies of leptomeningeal collateral circulation in Macacus rhesus. J Physiol1961; 159: 68–86.1.
3.
SymonLIshikawaSMeyerJS. Cerebral arterial pressure changes and development of leptomeningeal collateral circulation. Neurology1963; 13: 237–250.
4.
SymonLRussellRW. The development of cerebral collateral circulation following occlusion of vessels in the neck. An experimental study in baboons. J Neurol Sci1971; 13: 197–208.
5.
SymonL. A comparative study of middle cerebral pressure in dogs and macaques. J Physiol1967; 191: 449–465.
6.
SymonLPasztorEBranstonNM. The distribution and density of reduced cerebral blood flow following acute middle cerebral artery occlusion: an experimental study by the technique of hydrogen clearance in baboons. Stroke1974; 5: 355–364.
7.
BranstonNMSymonLCrockardHAPasztorE. Relationship between the cortical evoked potential and local cortical blood flow following acute middle cerebral artery occlusion in the baboon. Exp Neurol1974; 45: 195–208.
8.
BranstonNMSymonLCrockardHA. Recovery of the cortical evoked response following temporary middle cerebral artery occlusion in baboons: relation to local blood flow and PO2. Stroke1976; 7: 151–157.
9.
HopeDTBranstonNMSymonL. Restoration of neurological function with induced hypertension in acute experimental cerebral ischaemia. Acta Neurol Scand Suppl1977; 64: 506–507.
10.
SymonLBranstonNMStrongAJ. Autoregulation in acute focal ischemia. An experimental study. Stroke1976; 7: 547–554.
11.
AstrupJSymonLBranstonNMLassenNA. Cortical evoked potential and extracellular K+ and H+ at critical levels of brain ischemia. Stroke1977; 8: 51–57.
12.
HarrisRJSymonLBranstonNMBayhanM. Changes in extracellular calcium activity in cerebral ischaemia. J Cereb Blood Flow Metab1981; 1: 203–209.
13.
SymonLBrierleyJBMorphological changes in cerebral blood vessels in chronic ischemic infarction: flow correlation obtained by the hydrogen clearance method. In: Cervos-NavarroJLB (ed). The cerebral vessel wall, New York: Raven Press, 1976, pp. 165–174.
14.
BrierleyJBSymonL. Extent of infarcts in baboon's brain 3 years after occlusion of the middle cerebral artery. Neuropath Exp Neurol1977; 3: 217–218.
MommaFWangADSymonL. Effects of temporary arterial occlusion on somatosensory evoked responses in aneurysm surgery. Surg Neurol1987; 27: 343–352.
17.
AstrupJSiesjoBKSymonL. Thresholds in cerebral ischemia – the ischemic penumbra. Stroke1981; 12: 723–725.
18.
JonesTHMorawetzRBCrowellRM, et al.Thresholds of focal cerebral ischemia in awake monkeys. J Neurosurg1981; 54: 773–782.
19.
MorawetzRBDeGirolamiUOjemannRGMarcouxFWCrowellRM. Cerebral blood flow determined by hydrogen clearance during middle cerebral artery occlusion in unanesthetized monkeys. Stroke1978; 9: 143–149.
20.
HeissWD. Ischemic penumbra: evidence from functional imaging in man. J Cereb Blood Flow Metab2000; 20: 1276–1293.
21.
BaronJC. Mapping the ischaemic penumbra with PET: implications for acute stroke treatment. Cerebrovasc Dis1999; 9: 193–201.
22.
MarchalGSerratiCRiouxP, et al.PET imaging of cerebral perfusion and oxygen consumption in acute ischaemic stroke: relation to outcome. Lancet1993; 341: 925–927.
23.
CampbellBCParsonsMW. Imaging selection for acute stroke intervention. Int J Stroke2018; 13: 554–567.
24.
BaronJCvon KummerRdel ZoppoGJ. Treatment of acute ischemic stroke. Challenging the concept of a rigid and universal time window. Stroke1995; 26: 2219–2221.
25.
DonnanGABaronJCMaHDavisSM. Penumbral selection of patients for trials of acute stroke therapy. Lancet Neurol2009; 8: 261–269.
26.
MeyerFBPiepgrasDGSundtTMJrYanagiharaT. Emergency embolectomy for acute occlusion of the middle cerebral artery. J Neurosurg1985; 62: 639–647.
SymonLThe ischemic penumbra – the beginning. In: DonnanGABaronJCDavisSM, et al.(eds). The ischemic penumbra, New York: Informa, 2007, pp. 1–6.
29.
AstrupJSymonLBranstonNMLassenNA. In: Microsurgery for Stroke, Gratzl O, Schmiedek P, Robert F. Spetzler (eds) Thresholds of cerebral ischemia, New York, NY, USA: Springer, 1977.