1. Sporn MB, Dunlop NM, Newton DL, et al: Prevention of chemical carcinogenesis by vitamin A and its synthetic analogs. Fed Proc 1976;35:1332–1338
2. Sporn MB, Newton DL: Chemoprevention of cancer with retinoids. Fed Proc 1979;38:2528–2534
3. Mayer H, Bollag W, HÄnni R, et al: Retinoids, a new class of compounds with prophylactic and therapeutic activities in oncology and dermatology. Experientia 1978;34:1105–1119
4. Frickel F: Chemistry and physical properties of retinoids. In Sporn MB, Roberts AB, Goodman DS, eds. The Retinoids vol 1. Academic Press, New York. 1984;60–121
5. Muto Y, Moriwaki H, Omori M:In vitro binding affinity of novel synthetic polyprenoids (polyprenoic acids) to cellular retinoid-binding proteins. Gann 1981;72:974–977