000 00463cam a2200169 4500
001 a9078
008 090401t1990 xxu||||| |||| 00| 0 eng d
037 _bEMB
037 _bEMG
100 1 0 _aSmith, J. C.
222 _aNature
245 1 0 _aIdentification of a potent Xenopus mesoderm-inducing factor as a homologue of activin A
700 1 0 _aHuylebroeck, D.
700 1 0 _aPrice, B. M. J.
700 1 0 _aVan Nimmen, K.
773 _tNature
_g345 (6277), 729-731.
999 _c57706
_d57706