TY  - RPRT
TI  - TGF-beta: 20 years and counting.
AU  - M B Sporn
PY  - 1999
DO  - 10.1016/s1286-4579(99)00260-9
UR  - https://pubmed.ncbi.nlm.nih.gov/10611752/
ID  - 10611752
ER  -