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Histology examines the placentas of SENP2+/+ (A–D) and SENP2−/− (E–H) in transverse sections at E10.5. Labyrinth (L), spongiotrophoblast (S) and trophoblast giant cell (G) layers were defined by blue, red and green broken lines, respectively. Scale bars, 500 μm (A,E); 50 μm (B–D,F–H).
