TY  - GEN
TI  - An unwieldy hybrid
SN  - 1476-4687
PY  - 2007///0607
KW  - Animals
KW  - Chimera
KW  - Embryo Research
KW  - ethics
KW  - Genetic Engineering
KW  - Humans
KW  - Hybrid Cells
KW  - United Kingdom
N1  - Publication Type: Editorial
UR  - https://doi.org/10.1038/447353b
ER  -