1. Bakay L. The Blood Brain Barrier, 1956, Thomas, Springfield, Illinois.
2. Brierly JB. “The Blood-Brain Barrier: Structural Aspects” in Metabolism of the Nervous System, edited by Richter D, 1957, Pergamon Press, London, pages 121–135.
3. Dobbing J. The Blood-Brain Barrier, Guy’s Hosp Rep, 1956;105:27–38.
4. Edstrom R. An Explanation of the Blood-Brain Barrier Phenomenon, Acta Physiol Neurol, 1958;33:403–416.
5. Weinmann H-J, Muhler A, Raduchel B. “Gadolinium Chelates: Chemistry, Safety and Behavior” in Methods in Biomedical Magnetic Resonance Imaging and Spectroscopy, edited by Young IR, 2000, Wiley, New York, Vol 1, page 709.