- Correspondence to: Dr F X Bosch, Epidemiology and Cancer Registry Unit (SERC), Catalan Institute of Oncology (ICO), Hospital Duran i Reynals, Gran Via km 2,7, L'Hospitalet de Llobregat, 08907 Barcelona, Spain;
- Accepted January 22, 2002
- First published April 1, 2002.
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