TY  - JOUR
AU  - Tickle, Cheryll
AU  - Wolpert, Lewis
TI  - The progress zone [mdash] alive or dead?
JA  - Nat Cell Biol
PY  - 2002/09//print
VL  - 4
IS  - 9
SP  - E216
EP  - E217
PB  - Nature Publishing Group
SN  - 1465-7392
UR  - http://dx.doi.org/10.1038/ncb0902-e216
M3  - 10.1038/ncb0902-e216
N1  - 10.1038/ncb0902-e216
ER  -