RT Journal Article SR Electronic T1 Do ITPA and TPMT genotypes predict the development of side effects to AZA? JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1048 OP 1049 VO 55 IS 7 A1 J A Duley A1 A M Marinaki A1 M Arenas A1 T H J Florin YR 2006 UL http://gut.bmj.com/content/55/7/1048.abstract AB