zahra saadatian medical genetics department, faculty of medicine, tabriz university of medical sciences, tabriz, ir iran andrea masotti gene expression-microarrays laboratory, irccs bambino gesu children's hospital, rome, italy ziba nariman saleh fam medical genetics department, faculty of medicine, tehran university of medical sciences, tehran, ir iran behnam alipoor clinical biochemistry department, faculty of medicine, tehran university of medical sciences, tehran, ir iran milad bastami medical genetics department, faculty of medicine, shahid beheshti university of medical sciences, tehran, ir iran; genomic research center, taleghani hospital, shahid beheshti university of medical sciences, tehran, ir iran; genomic research center, taleghani hospital, shahid beheshti university of medical sciences, tehran, ir iran. tel: +98-2122439959, fax: +98-2122439961 hamid ghaedi medical genetics department, faculty of medicine, shahid beheshti university of medical sciences, tehran, ir iran; department of medical genetics, faculty of medicine, shahid beheshti university of medical sciences, velenjak st., shahid chamran highway, tehran, ir iran. tel: +98-2122439982, fax: +98-2122439784

Keita Funakawa Hirofumi Uto Fumisato Sasaki Yuichiro Nasu Seiichi Mawatari Shiho Arima Junichi Nakazawa Hiroki Taguchi Shinichi Hashimoto Shuji Kanmura Hitoshi Setoyama Masatsugu Numata Hirohito Tsubouchi Akio Ido Carlo Maria Girelli.

Henderik L van Westreenen Marinke Westerterp Pieter L Jager Hendrik M van Dullemen Gerrit W Sloof Emile F I Comans J Jan B van Lanschot Theo Wiggers John Th M Plukker

Jung Soo Park Young Hoon Youn Jae Jun Park Jie-Hyun Kim Hyojin Park

iradj maleki associate professor of gastroenterology, inflammatory diseases of upper gastrointestinal tract research center, mazandaran university of medical sciences, sari, iran ramin shekarriz assistant professor of adult hematology and oncology, department of hematology and oncology, mazandaran university of medical sciences, sari, iran anahita nosrati assistant professor of pathology, department of pathology, mazandaran university of medical sciences, sari, iran elahe orang research assistant, , inflammatory diseases of upper gastrointestinal tract research center, mazandaran university of medical sciences, sari, iran

maryam hassan esfehani department of surgical oncology, cancer institute, imam khomeini hospital complex, tehran university of medical sciences, tehran, iran. habibollah mahmoodzadeh department of surgical oncology, cancer institute, imam khomeini hospital complex, tehran university of medical sciences, tehran, iran. abbas alibakhshi department of surgical oncology, cancer institute, imam khomeini hospital complex, tehran university of medical sciences, tehran, iran. farinaz safavi department of surgical oncology, cancer institute, imam khomeini hospital complex, tehran university of medical sciences, tehran, iran.

A R A L Rossini C L Hashimoto K Iriya C Zerbini E R Baba J P P Moraes-Filho