Ligands for peroxisome proliferator-activated receptor-γ and retinoic acid receptor inhibit growth and induce apoptosis of human breast cancer cells in vitro and in BNX mice. - Elstner,E.; Muller,C.; Koshizuka,K.; Williamson,EA.; Park,D.; Asou,H.; Shintaku,P.; Said,JW.; Heber,D.; Koeffler,HP. (Proc Natl Acad Sci, 1998)