RT Journal Article SR Electronic T1 Epithelial cell lineages in developing, restoring, and transforming liver: evidence for the existence of a 'differentiation window'. JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 294 OP 296 DO 10.1136/gut.35.3.294 VO 35 IS 3 A1 N Marceau YR 1994 UL http://gut.bmj.com/content/35/3/294.abstract AB