TY  - RPRT
TI  - Mesoderm induction by transforming growth factor beta: medium conditioned by TGF-beta-treated ectoderm enhances the inducing activity.
AU  - W Knöchel
AU  - H Tiedemann
PY  - 1989
DO  - 10.1007/bf00368638
UR  - https://pubmed.ncbi.nlm.nih.gov/2747804/
ID  - 2747804
ER  -