Embryo research.
D018070:Biological Specimen Banks; D002460:Cell Line; D033041:Embryo Research / Q000331:legislation & jurisprudence*; D004622:Embryo, Mammalian / Q000166:cytology*; D005307:Fertilization in Vitro / Q000331:legislation & jurisprudence; D006801:Humans; D012109:Research Support as Topic; D013234:Stem Cells; D014019:Tissue Donors; D006113:United Kingdom