O4‐09‐05: Dextromethorphan/quinidine (AVP‐923) for treatment of agitation in patients with Alzheimer's disease: Analysis of week 10 results for patients treated only with AVP‐923 versus patients receiving only placebo (NCT01584440). (1st July 2015) - Cummings, Jeffrey L.; Lyketsos, Constantine; Peskind, Elaine R.; Porsteinsson, Anton P.; Mintzer, Jacobo E.; Scharre, Douglas W.; De La Gándara, José E.; Agronin, Marc; Nguyen, Uyen; Shin, Paul; Tariot, Pierre N.; Siffert, Joao