Patrocinio
North Thames National Health Service Executive Research and Development, the Northern and Yorkshire National Health Service Executive; the Imperial Cancer Research Fund, the Cancer Research Campaign, que ofrece financiamiento al Institute of Cancer Research Clinical Trials and Statistic Unit, the British United Provident Association Foundation; the British Association of Plastic Surgeons, and the Meirion Thomas Cancer Research Trust
Agradecimiento
Los autores agradecen al Profesor Julian Peto at the Institute of Cancer Research, Sutton, Surrey, United Kingdom; a los miembros del monitoreo de los datos y a los 900 pacientes que gentilmente aceptaron el ingreso en el estudio