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"Frontiers in Bioscience"
Embryo, folding, day 26, sagittal section
Movement of septum transversum, heart, pericardial coelom, and oropharyngeal membrane to the ventral surface of the embryo
Incorporation of part of the yolk sac as part of the foregut
Movement of septum transversum, heart, pericardial coelom, and oropharyngeal membrane to the ventral surface of the embryo