Antiviral therapy: Valacyclovir Treatment of Alzheimer’s Disease (VALAD) Trial: protocol for a randomised, double-blind,placebo-controlled, treatment trial oleh Howard Andrews, D P Devanand, William C Kreisl, Qolamreza Razlighi, Anne Gershon, Yaakov Stern, Akiva Mintz, Thomas Wisniewski, Edward Acosta, Julianna Pollina, Mariasofia Katsikoumbas, Karen L Bell, Gregory H Pelton, Deborah Deliyannides, K M Prasad