1. Molecular Oncology Group (G.B.T., A.T., V.G.) Royal Victoria Hospital Montréal, Québec, Canada H3A 1A1
2. Mammalian Genetics Laboratory (N.G.C., D.J.G., N.A.J.) ABL-Basic Research Program National Cancer Institute-Frederick Cancer Research and Development Center Frederick, Maryland 21702
3. Laboratory of Molecular Endocrinology (F.L.) Centre Hospitalier de l’Université Laval Research Center Ste-Foy, Québec, Canada G1V 4G2
4. Departments of Biochemistry, Medicine, and Oncology (V.G.) McGill University Montréal, Québec, Canada