Lives of the embryo.
D015925:Cryopreservation; D019924:Embryo Disposition / Q000941:ethics / Q000331:legislation & jurisprudence; D033041:Embryo Research / Q000941:ethics* / Q000331:legislation & jurisprudence; D004622:Embryo, Mammalian; D005307:Fertilization in Vitro; D006801:Humans; D007883:Legislation, Medical; D011057:Politics; D013234:Stem Cells; D014481:United States; D026712:Value of Life