Sildenafil Improves Vascular and Metabolic Function in Patients with Alzheimer's Disease.

Sheng M, Lu H, Liu P, Li Y, Ravi H, Peng S-L, Diaz-Arrastia R, Devous MD, Womack KB

J Alzheimers Dis. 2017; 60(4):1351-1364. PMID: 29036811. Abstract