1. Sporn, M. B. and Roberts, A. B. (1985) What is a retinoid? Ciba Found. Symp. 113, 1–5.
2. Mangelsdorf, D. J., Umesono, K., and Evans, R. M. (1994) The retinoid reception, in The Retinoids. Biology, Chemistry and Medicine, 2nd ed. (Spore, M. B., Roberts, A. B., and Goodman D. S., eds.), Raven, New York, pp. 319–349.
3. Thaller, C. and Eichele, G. (1987) Identification and spatial distribution of retinoids in the developing chick limb bud. Nature 327, 625–628.
4. Scott, W. J., Walter, R., Tzimas, G., Sass, J. O., Nau, H., and Collins, M. D. (1994) Endogenous status of retinoids and their cytosolic binding proteins in limb buds of chick vs mouse embryos. Dev. Biol. 165, 397–409.
5. Horton, C. and Maden, M. (1995) Endogenous distribution of retinoids during normal development and teratogenesis in the mouse embryo. Dev. Dynam. 202, 312–323.