Influence of the endoderm on heart differentiation during the early stages of development of the chicken embryo
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1. In stages +4, 5 and +5 in the chick embryo, the bilateral extirpation of the endoderm in the entire extension of the P.H.M. region detains heart differentiation, giving rise to acardiac embryos. 2. The unilateral extirpation of the endoderm in the entire ex... ...
