Figure 2B. Adams RH; Wilkinson GA; Weiss C; Diella F; Gale NW; Deutsch U; Risau W; Klein R. Roles of ephrinB ligands and EphB receptors in cardiovascular development: demarcation of arterial/venous domains, vascular morphogenesis, and sprouting angiogenesis. 1999 Feb 1;13(3):295-306. [PMID:9990854]