Maffuz Antonio, Bustamante Flor de Thé, Silva Juan Alejandro, Torres-Vargas Sergio
Division of Medical Oncology, Oncology Hospital of the National Medical Centre Century XXI, Mexican Institute of Social Security, Mexico City, Mexico.
Lancet Oncol. 2005 Mar;6(3):185-6. doi: 10.1016/S1470-2045(05)01770-5.