A modified choline-deficient, ethionine-supplemented diet protocol effectively induces oval cells in mouse liver
Hepatology (2001) - Comment
pubmed: 11526537  doi: 10.1053/jhep.2001.26751  issn: 0270-9139 

B Akhurst, E J Croager, C A Farley-Roche, J K Ong, M L Dumble, B Knight, G C Yeoh