Divalproex sodium's antipanic effect in panic disorder: A placebo-controlled study : Millie Lum, M.Sc. Pharm. (by invitation), Réjean Fontaine, M.D., Robert Elie, M.D., Ph.D. (by invitation), Alfonso Ontiveros, M.D. (by invitation) Louis H. Lafontaine Hospital, University of Montreal, Montreal, Quebec H1N 3M5, Canada