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Keywords: Horizon
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Journal Articles
Journal:
Fetal Therapy
Fetal Therapy (1988) 3 (3): 173–184.
Published Online: 26 November 2009
... of development. In contrast to this, the division of a pregnancy into trimesters is based upon an accident of mathematics and bears no relationship to human development. The proposal is to divide pregnancy into three stages, termed ‘horizons’. First is the ‘embryonic horizon’ from fertilisation until the end...
