Vivian, J. L., Chen, Y., Yee, D., Schneider, E., & Magnuson, T. (2002). An allelic series of mutations in Smad2 and Smad4 identified in a genotype-based screen of N-ethyl-N- nitrosourea-mutagenized mouse embryonic stem cells. National Academy of Sciences.

Vivian, Jay L., Yijing Chen, Della Yee, Elizabeth Schneider, e Terry Magnuson. An Allelic Series of Mutations in Smad2 and Smad4 Identified in a Genotype-based Screen of N-ethyl-N- Nitrosourea-mutagenized Mouse Embryonic Stem Cells. National Academy of Sciences, 2002.

Vivian, Jay L., et al. An Allelic Series of Mutations in Smad2 and Smad4 Identified in a Genotype-based Screen of N-ethyl-N- Nitrosourea-mutagenized Mouse Embryonic Stem Cells. National Academy of Sciences, 2002.