Giudice, L. C., Conover, C. A., Bale, L., Faessen, G. H., Ilg, S., Sun, I., Suen, L.-F., Irwin, J. C., Christiansen, M.
, Overgaard, M. T. & Oxvig, C. (2002).
Identification and regulation of the IGFBP-4 protease and its physiologic inhibitor in human trophoblasts and endometrial stroma: Evidence for paracrine regulation of IGF-II bioavailability in the placental bed during human implantation.
Journal of Clinical Endocrinology and Metabolism,
87, 2359-2366.