Authors: Spencer D Dorn; Olafur S Palsson; Syed I M Thiwan; Motoyori Kanazawa; W Crawford Clark; Miranda A L van Tilburg; Douglas A Drossman; Yolanda Scarlett; Rona L Levy; Yehuda Ringel; Michael D Crowell; Kevin W Olden; William E Whitehead Journal: Gut Date: 2007-05-04 Impact factor: 23.059