Affiliation: | 1. Institut Municipal d'Investigació Mèdica, Barcelona, Spain;2. Facultat de Medicina, Universitat Autònoma de, Barcelona, Spain;3. CIBER de Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain;4. Universitat Rovira i Virgili, Tarragona, Spain;5. Centro Nacional de Investigaciones Oncológicas, Madrid, Spain;6. Hospital Vall d'Hebron, Barcelona, Spain;7. Hospital Son Dureta, Palma de Mallorca, Spain;8. Hospital Universitario de Elche, Universidad Miguel Hernández, Alicante, Spain;9. Universitat Pompeu Fabra, Barcelona, Spain;10. Members of the Multicenter Prospective Study on the Role of K‐ras and other Genetic Alterations in the Diagnosis, Prognosis and Etiology of Pancreatic and Biliary Diseases (PANKRAS II) Study Group are mentioned in previous publications [Porta et al., 1999a,b]. |