title: An old question becomes new again: stem cell issue causes debate over the exact moment life begins.
authors.forename: N
authors.initials: N
authors.lastname: Wade
mesh_terms: D033421:Beginning of Human Life; D019924:Embryo Disposition; D033041:Embryo Research; D004622:Embryo, Mammalian / Q000166:cytology*; D005307:Fertilization in Vitro; D006801:Humans; D012067:Religion; D013234:Stem Cells; D038522:Twinning, Monozygotic
keywords: Biomedical and Behavioral Research; Genetics and Reproduction; Popular Approach/Source