Authors: Xavier Castellsagué; F Xavier Bosch; Nubia Muñoz; Chris J L M Meijer; Keerti V Shah; Silvia de Sanjose; José Eluf-Neto; Corazon A Ngelangel; Saibua Chichareon; Jennifer S Smith; Rolando Herrero; Victor Moreno; Silvia Franceschi Journal: N Engl J Med Date: 2002-04-11 Impact factor: 91.245