Seminars in Oncology – Vol 23, N°1, February 96, p. 24-27 Catimel G, Spielmann M, Dieras V, Kayitalire L, Pouillart P, Guastalla J-P, Soler-Michel P, Graffand N, Garet F, Dumortier F, Pellae-Cosset B and Chazard M.