Fig1B. from [doi:10.1242/jcs.00388] J Cell Sci 2003 116(9): 1775-86, Tanimizu N; Nishikawa M; Saito H; Tsujimura T; Miyajima A, Isolation of hepatoblasts based on the expression of Dlk/Pref-1. Copyright 2003 [PMID:12665558]