Ketamine: stimulating antidepressant treatment? by Malhi, G, Byrow, Y, Cassidy, F, Cipriani, A, Demyttenaere, K, Frye, M, Gitlin, M, Kennedy, S, Ketter, T, Lam, R, McShane, R, Mitchell, A, Ostacher, M, Rizvi, S, Thase, M, Tohen, M