An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Estevez M, Attisano L, Wrana JL, Albert PS, Massagué J, Riddle DL.Estevez M, et al. Among authors: wrana jl.Nature. 1993 Oct 14;365(6447):644-9. doi: 10.1038/365644a0.Nature. 1993.PMID: 8413626
Childs SR, Wrana JL, Arora K, Attisano L, O'Connor MB, Massagué J.Childs SR, et al. Among authors: wrana jl.Proc Natl Acad Sci U S A. 1993 Oct 15;90(20):9475-9. doi: 10.1073/pnas.90.20.9475.Proc Natl Acad Sci U S A. 1993.PMID: 8415726Free PMC article.
Holley SA, Neul JL, Attisano L, Wrana JL, Sasai Y, O'Connor MB, De Robertis EM, Ferguson EL.Holley SA, et al. Among authors: wrana jl.Cell. 1996 Aug 23;86(4):607-17. doi: 10.1016/s0092-8674(00)80134-8.Cell. 1996.PMID: 8752215Free article.