[1] CIBEREHD, Madrid, Spain
[2] Hosp Univ La Paz, Hepatol Unit, Madrid, Spain
[3] Hosp Univ Cin San Cecilio, Granada, Spain
[4] Uca, Cadiz, Spain
[5] Galician Hlth Serv, Santiago De Compostela, Spain
[6] Chuf, Gastroenterol Serv, Ferrol, Spain
[7] Hosp Univ Marques De Valdecilla, Gastroenterol Serv, Santander, Spain
[8] Cantabria Univ, Marques De Valdecilla Univ Hosp, Idival, Santander, Spain
[9] Hosp Univ Infanta Leonor, Infect Dis Unit, Madrid, Spain
[10] Complejo Hosp Leon, Gastroenterol Serv, Leon, Spain
[11] Univ Malaga, Malaga, Spain
[12] Hosp Univ Virgen De La Victoria, Gastroenterol Serv, Malaga, Spain
[13] Univ Valencia, Valencia, Spain
[14] Hosp Gen Univ, Gastroenterol Serv, Valencia, Spain
[15] Complexo Hosp Univ Santiago, Coruna, Spain
[16] Hosp Univ Reina Sofia, Cordoba, Spain
[17] Hosp Univ Reina Sofia, Gastroenterol Serv, Cordoba, Spain
[18] Univ Seville, Virgen Del Rocio Univ Hosp, Ciberehd, Inst Biomed Sevilla,Ucm Digest Dis, Seville, Spain