Translational Predictive Biology - 1999 Ramsoondar, J. J., Christopherson, R. J., Guilbert, L. J., Dixon, W. T., Ghahary, A., Ellis, S., … Piedrahita, J. A. (1999). Regulated Expression of MHC class I molecules in the porcine embryo. Biology of Reproduction, 60, 387–397. Piedrahita, J. A., Oetama, B., Bennett, G., Waes, J. V., Lacey, S. W., Kamen, B., … Finnell, R. (1999). Inactivation of the folate binding protein genes disrupts neural tube closure. Nature Genetics, 23, 228–232.