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