Effect of dextromethorphan-quinidine on agitation in patients with Alzheimer disease dementia a randomized clinical trial

Jeffrey L. Cummings, Constantine G. Lyketsos, Elaine R. Peskind, Anton P. Porsteinsson, Jacobo E. Mintzer, Douglas W. Scharre, Jose E. De La Gandara, Marc Agronin, Charles S. Davis, Uyen Nguyen, Paul Shin, Pierre N. Tariot, João Siffert