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Time to treatment failure for generalised onset seizures (Hazard Ratio for each AED compared to standard VPA) [Tudur Smith et al. 2007]. CBZ, carbamazepine; VPA, sodium valproate; PHT, phenytoin; PB, phenobarbitone; LTG, lamotrigine; OXC, oxcarbazepine; GBP, gabapentin; TPM, topirimate.
