Thrombospondin-4 is expressed by early osteogenic tissues in the chick embryo.
Tucker, R P, J C Adams, and J Lawler. 1995. “Thrombospondin-4 Is Expressed by Early Osteogenic Tissues in the Chick Embryo.”. Developmental Dynamics : An Official Publication of the American Association of Anatomists 203 (4): 477-90.