Fig. 1From: Trophoblast differentiation, invasion and hormone secretion in a three-dimensional in vitro implantation model with rhesus monkey embryosGrowth of Rhesus Embryos in Matrigel Rafts. Embryos that failed to hatch (a) or that did not completely hatch (b), failed to develop and degenerated. Embryos that completed hatching (c) continued to develop (d), where within 15 days post embedding trophoblast protrusions and inner cavities formed. Scale bar = 100 μmBack to article page