Induction of smg p21/rap1Ap21/krev-1 p21 gene expression during phorbol ester-induced differentiation of a human megakaryocytic leukemia cell line - Adachi, M; Ryo, R; Yoshida, A; Sugano, W; Yasunaga, M; Saigo, K; Yamaguchi, N; Sato, K; Kaibuchi, K; Takai, Y (Oncogene, 1992)