RT Journal Article SR Electronic T1 Interleukin 10 is a growth factor for a population of regulatory T cells JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 157 OP 158 DO 10.1136/gut.42.2.157 VO 42 IS 2 A1 ASSEMAN, C A1 POWRIE , F YR 1998 UL http://gut.bmj.com/content/42/2/157.abstract AB