1. Schmidt D. Evaluation of clinical efficacy in anti-epileptic drugs trial. Epilepsy Res. 1991; Suppl. 3: 68–78.
2. Richens A. Rational polypharmacy. Seizure. 1995;4:211–214.
3. Wilensky AJ. Protocol design. In: French JA, Dichter MA, Leppik IE (eds.). New Antiepileplic Drug Development: Preclinical and Clinical Aspects. Amsterdam: Elsevier Science; 1993:107–113.
4. Schmidt D. Reduction of two-drug therapy in intractable epilepsy. Epilepsia. 1983;24:368–376.
5. Leppik IE. Sources for variability in clinical trials of new drugs for epilepsy. In: French JA, Dichter MA, Leppik IE (eds.). New Antiepileptic Drug Development: Preclinical and Clinical Aspects. Amsterdam: Elsevier Science; 1993:157–166.