TY  - JOUR
TI  - Life as we know it
JA  - Nature
PY  - 2007/09/06/print
VL  - 449
IS  - 7158
SP  - 1
EP  - 1
PB  - Nature Publishing Group
SN  - 0028-0836
UR  - http://dx.doi.org/10.1038/449001a
M3  - 10.1038/449001a
N1  - 10.1038/449001a
ER  -