title: Blood and Ventricular Cerebrospinal Fluid Concentrations of Clomipramine and Its Metabolites in Stereotactic Subcaudate Tractotomy: Malizia AL, Dawling S, Bartlett JR, Bridges PK. Geoffrey Knight Unit for Affective disorders, Brook General Hospital, london SE18 4LW and National Poisons Unit, avonley Road, New Cross, London SE14.