000 00369cam a2200133 4500
001 a9123
008 090401t1990 xxu||||| |||| 00| 0 eng d
037 _bPHB
100 1 0 _aSummerbell, D.
222 _aTrends in Neurosciences
245 1 0 _aRetinoic acid, a developmental signalling molecule
700 1 0 _aMaden, M.
773 _tTrends in Neurosciences
_g13 (4), 142-147.
999 _c57751
_d57751