1. Budithal, F., Lennox-Buchthal, M. A.: Diphenylhydantoin, Relation of Anticonvulsant Effect to Concentration in Serum. In: Antiepileptic Drugs(eds. Woodbury, D. M., Penry, J. K., and Schmidt, R. P.), p. 193. New York: Raven Press 1972 a.
2. Buchthal, F., Lennox-Buchthal, M. A.: Phenobarbital, Relation of Serum Concentration to Control of Seizures. In: Antiepileptic Drugs (eds. Woodbury, D. M., Penry, J. K., and Schmidt, R. P.), p. 335. New York: Raven Press 1972 b.
3. Gardner-Medwin, D.: Why Should We Measure Serum Levels of Anticonvulsant Drugs in Epilepsy? Develop. Med. Child Neurol. 15, 87 (1973).
4. Hansten, P. D.: Drug Interactions, Philadelphia Lea and Febiger, 1971, pp. 45–56.
5. Kupferberg, H. J.: Quantitative Estimation of Diphenylhydantoin, Primidone, and Phenobarbital in Plasma by Gas-Liquid Chromatography. Clin. Chim. Acta 29, 283 (1970).