[1] Inst Salud Publ Navarra, Serv Navarro Salud Osasunbidea, Secc Epidemiol Enfermedads Transmisibles, Pamplona 31003, Spain
[2] Anat Patol Hosp Navarra, Navarra, Spain
[3] Anat Patol Hosp Virgen Camino, Navarra, Spain
[4] Hematol Hosp Virgen Camino, Pamplona, Spain
[5] Oncol Hosp Navarra, Navarra, Spain
[6] Univ Navarra Clin, Navarra, Spain
[7] Anat Patol Hosp Reina Sofia Tudela, Navarra, Spain
[8] Atenc Especializada Serv Navarro Salud, Navarra, Spain
[9] Inst Estadist Navarra, Navarra, Spain