Francis SE, Goh KL, Hodivala-Dilke K, Bader BL, Stark M, Davidson D, Hynes RO. Central roles of alpha5beta1 integrin and fibronectin in vascular development in mouse embryos and embryoid bodies. Arterioscler Thromb Vasc Biol. 2002 Jun 01;22(6):927–33. doi: 10.1161/01.atv.0000016045.93313.f2. PMID: 12067900.