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Bayha, Elke; Jørgensen, Mette C; Serup, Palle; Grapin-Botton, Anne (2009). Retinoic acid signaling organizes endodermal organ specification along the entire antero-posterior axis. PLoS ONE, 4(6), e5845. Lawrence, Kans.: Public Library of Science 10.1371/journal.pone.0005845
