TY - JOUR A1 - Koch, Sabine A1 - Titze, Karl A1 - Treuter, S. A1 - Schröder, M. A1 - Zimmermann, Ralf B. A1 - Steinhausen, Hans-Christoph A1 - Lehmkuhl, Ulrike A1 - Rauh, Hellgard T1 - Maternal use of valproate during pregnancy, risk of major malformations, and brain disorder Y1 - 2000 ER -