Feldman, B., Concha, M.L., Saude, L., Parsons, M.J., Adams, R.J., Wilson, S.W., and Stemple, D.L. (2002) Lefty antagonism of squint is essential for normal gastrulation. Current biology : CB. 12(24):2129-2135

Smith, K.A., Noël, E., Thurlings, I., Rehmann, H., Chocron, S., and Bakkers, J. (2011) Bmp and Nodal Independently Regulate lefty1 Expression to Maintain Unilateral Nodal Activity during Left-Right Axis Specification in Zebrafish. PLoS Genetics. 7(9):e1002289