1,25- dihydroxyvitamin D3 induces differentiation of a retinoic acid-resistant acute promyelocytic leukemia cell line (UF-1) associated with expression of p21 (WAE1/CIP1) and p27 (KIP1) - Muto, A; Kizaki, M; Yamato, K; Kawai, Y; Kamata, M; Ueno, H; Ohguchi, M; Nishihara, T; Koeffler, HP; Ikeda, Y (Blood, 1999)