Efficacy, safety, and tolerability of augmentation pharmacotherapy with aripiprazole for treatment-resistant depression in late life: A randomized placebo-controlled trial Lenze EJ, Mulsant BH, Blumberger DM, Karp JF, Newcomer JW, Anderson SJ, Dew MA, Butters MA, Stack JA, Begley AE and Reynolds CF The Lancet, 2015; 386(10011):2404-2412. Treatment-resistant major depressive disorder is common and potentially life...