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. 2014 Mar 20;9(3):e91334. doi: 10.1371/journal.pone.0091334

Figure 10. Fetal lung sections from distinct timepoints during fetal development demonstrate endothelial expression of HOXD8 and HOXD9.

Figure 10

Expression of HOXD8 (a–e) and HOXD9 (f–j) during embryo and fetal development at 47 days (vasculogenesis), days 121 and 144 (angiogenesis), term and in adult lung. Whole lung day 47 (magnification ×40); developing bronchus/airway with surrounding islands of vasculogenesis day 47 (x100); vessel during angiogenesis (V) with adjacent airway (A), day 121 (x400); at day 144 the vessel has lumenised and is perfused (x200); term (x400) and adult lung (x200). B =  bronchus, V = vessel. Scale bars 100 μm.