title: A need for definition: a matter of life and death for human embryos.
authors.forename: S A
authors.initials: SA
authors.lastname: Shurpyak
authors.forename: A P H
authors.initials: AP
authors.lastname: Walsh
authors.forename: D J
authors.initials: DJ
authors.lastname: Walsh
authors.forename: E S
authors.initials: ES
authors.lastname: Sills
mesh_terms: D020964:Embryo Loss; D033041:Embryo Research / Q000941:ethics*; D032984:Ethics, Research; D006801:Humans; D035845:Research Embryo Creation / Q000941:ethics