1. Kisliuk, R. L. The Biochemistry of Folates inFolate Antagonists as Therapeutic Agents; Sirotnak, F. M., Burchall, J. J., Ensminger, W. B., Montgomery, J. A., Eds.; Academic Press: Orlando, FL, 1984; Vol. 1, pp 1−68.
2. Dembo, M.; Sirotnak, F. M. Membrane Transport of Folate Compounds in Mammalian Cells. In the volume cited in ref 1, pp 173−217.