Design of clinical trials in bipolar disorders by Tohen, M, Bowden, C, Berk, M, Berlanga, C, Andrade, C, Broich, K, Calabrese, JR, Frank, E, Geddes, J, Goodwin, G, Ha, K, Hirschfeld, B, Kanba, S, Keck, P, Lafer, B, Licht, R, Nierenberg, A, Nolen, W, Suppes, T, Tamayo, J, Vieta, E, Yatham, L, Carlson, B