1. Departments of Clinical Biology (J.M.B., V.L.), 94805 Villejuif, France
2. Nuclear Medicine (C.M., M.S.), Institut Gustave-Roussy, 94805 Villejuif, France
3. Dipartimento di Medicina Sperimentale e Clinica, Policlinico Mater Domini (D.R., S.F.), 88100 Catanzaro, Italy
4. Pathology (B.C.), 94805 Villejuif, France