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1 Evaluation of the Effects of Sildenafil Citrate (Viagra) on Vertebral Artery Blood Flow in Patients with Vertebro-Basilar Insufficiency
Zulkif Bozgeyik, Sait Berilgen, Huseyin Ozdemir, Aslan Tekatas, Erkin Ogur
Korean J Radiol.2008;9(6):477-480.   Published online 2008 December 22     DOI: http://dx.doi.org/10.3348/kjr.2008.9.6.477
      

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