'When did I begin?' revisited.
D033421:Beginning of Human Life; D001695:Biology; D002410:Catholicism; D002678:Chimera; D033041:Embryo Research; D004622:Embryo, Mammalian; D005314:Embryonic and Fetal Development; D006664:History; D006801:Humans; D007206:Individuality; D019369:Life; D028681:Moral Obligations; D010375:Pedigree; D028723:Personhood; D010684:Philosophy; D012067:Religion; D012106:Research; D012941:Social Responsibility; D028725:Theology; D038522:Twinning, Monozygotic; D014427:Twins
Analytical Approach; Aristotle; Genetics and Reproduction; Thomas Aquinas; When Did I begin? (Ford, N.)