Sildenafil treatment of subacute ischemic stroke: a safety study at 25-mg daily for 2 weeks.
Silver B, McCarthy S, Lu M, Mitsias P, Russman AN, Katramados A, Morris DC, Lewandowski CA, Chopp M. Sildenafil treatment of subacute ischemic stroke: a safety study at 25-mg daily for 2 weeks. J Stroke Cerebrovasc Dis. 2009 Sep-Oct; 18(5):381-3.