Efficacy of olanzapine in acute bipolar mania: a double-blind, placebo-controlled study. The Olanzapine HGGW Study Group. - Tohen,M.; Jacobs,T.G.; Grundy,S.L.; McElroy,S.L.; Banov,M.C.; Janicak,P.G.; Sanger,T.; Risser,R.; Zhang,F.; Toma,V.; Francis,J.; Tollefson,G.D.; et al. (Arch Gen Psychiatry, 2000)