1. Axelrod, J., and J. Reichenthal: The fate of caffeine in man and a method for its estimation in biological material. J. Pharmacol. exp. Ther. 107, 519 (1953).
2. Brodie, B. B., J. Axelrod, and J. Reichenthal: Metabolism of theophylline (1,3-Dimethylxanthine) in man. J. biol. Chem. 194, 215 (1952).
3. ??, and L. C. Mark: The role of body fat in limiting the duration of action of thiopental. J. Pharmacol. exp. Ther. 105, 421 (1952).
4. ??, and L. S. Schanker: The importance of dissociation constant and lipid solubility in influencing the passage of drugs into the cerebrospinal fluid J. Pharmacol. exp. Ther. 130, 20 (1960).
5. Büchi, J.: Grundlagen der Arzneimittelforschung und der synthetischen Arzneimittel. Birkhäuser 1963.